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Writing a Literature Review
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A literature review is a document or section of a document that collects key sources on a topic and discusses those sources in conversation with each other (also called synthesis ). The lit review is an important genre in many disciplines, not just literature (i.e., the study of works of literature such as novels and plays). When we say “literature review” or refer to “the literature,” we are talking about the research ( scholarship ) in a given field. You will often see the terms “the research,” “the scholarship,” and “the literature” used mostly interchangeably.
Where, when, and why would I write a lit review?
There are a number of different situations where you might write a literature review, each with slightly different expectations; different disciplines, too, have field-specific expectations for what a literature review is and does. For instance, in the humanities, authors might include more overt argumentation and interpretation of source material in their literature reviews, whereas in the sciences, authors are more likely to report study designs and results in their literature reviews; these differences reflect these disciplines’ purposes and conventions in scholarship. You should always look at examples from your own discipline and talk to professors or mentors in your field to be sure you understand your discipline’s conventions, for literature reviews as well as for any other genre.
A literature review can be a part of a research paper or scholarly article, usually falling after the introduction and before the research methods sections. In these cases, the lit review just needs to cover scholarship that is important to the issue you are writing about; sometimes it will also cover key sources that informed your research methodology.
Lit reviews can also be standalone pieces, either as assignments in a class or as publications. In a class, a lit review may be assigned to help students familiarize themselves with a topic and with scholarship in their field, get an idea of the other researchers working on the topic they’re interested in, find gaps in existing research in order to propose new projects, and/or develop a theoretical framework and methodology for later research. As a publication, a lit review usually is meant to help make other scholars’ lives easier by collecting and summarizing, synthesizing, and analyzing existing research on a topic. This can be especially helpful for students or scholars getting into a new research area, or for directing an entire community of scholars toward questions that have not yet been answered.
What are the parts of a lit review?
Most lit reviews use a basic introduction-body-conclusion structure; if your lit review is part of a larger paper, the introduction and conclusion pieces may be just a few sentences while you focus most of your attention on the body. If your lit review is a standalone piece, the introduction and conclusion take up more space and give you a place to discuss your goals, research methods, and conclusions separately from where you discuss the literature itself.
Introduction:
- An introductory paragraph that explains what your working topic and thesis is
- A forecast of key topics or texts that will appear in the review
- Potentially, a description of how you found sources and how you analyzed them for inclusion and discussion in the review (more often found in published, standalone literature reviews than in lit review sections in an article or research paper)
- Summarize and synthesize: Give an overview of the main points of each source and combine them into a coherent whole
- Analyze and interpret: Don’t just paraphrase other researchers – add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
- Critically Evaluate: Mention the strengths and weaknesses of your sources
- Write in well-structured paragraphs: Use transition words and topic sentence to draw connections, comparisons, and contrasts.
Conclusion:
- Summarize the key findings you have taken from the literature and emphasize their significance
- Connect it back to your primary research question
How should I organize my lit review?
Lit reviews can take many different organizational patterns depending on what you are trying to accomplish with the review. Here are some examples:
- Chronological : The simplest approach is to trace the development of the topic over time, which helps familiarize the audience with the topic (for instance if you are introducing something that is not commonly known in your field). If you choose this strategy, be careful to avoid simply listing and summarizing sources in order. Try to analyze the patterns, turning points, and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred (as mentioned previously, this may not be appropriate in your discipline — check with a teacher or mentor if you’re unsure).
- Thematic : If you have found some recurring central themes that you will continue working with throughout your piece, you can organize your literature review into subsections that address different aspects of the topic. For example, if you are reviewing literature about women and religion, key themes can include the role of women in churches and the religious attitude towards women.
- Qualitative versus quantitative research
- Empirical versus theoretical scholarship
- Divide the research by sociological, historical, or cultural sources
- Theoretical : In many humanities articles, the literature review is the foundation for the theoretical framework. You can use it to discuss various theories, models, and definitions of key concepts. You can argue for the relevance of a specific theoretical approach or combine various theorical concepts to create a framework for your research.
What are some strategies or tips I can use while writing my lit review?
Any lit review is only as good as the research it discusses; make sure your sources are well-chosen and your research is thorough. Don’t be afraid to do more research if you discover a new thread as you’re writing. More info on the research process is available in our "Conducting Research" resources .
As you’re doing your research, create an annotated bibliography ( see our page on the this type of document ). Much of the information used in an annotated bibliography can be used also in a literature review, so you’ll be not only partially drafting your lit review as you research, but also developing your sense of the larger conversation going on among scholars, professionals, and any other stakeholders in your topic.
Usually you will need to synthesize research rather than just summarizing it. This means drawing connections between sources to create a picture of the scholarly conversation on a topic over time. Many student writers struggle to synthesize because they feel they don’t have anything to add to the scholars they are citing; here are some strategies to help you:
- It often helps to remember that the point of these kinds of syntheses is to show your readers how you understand your research, to help them read the rest of your paper.
- Writing teachers often say synthesis is like hosting a dinner party: imagine all your sources are together in a room, discussing your topic. What are they saying to each other?
- Look at the in-text citations in each paragraph. Are you citing just one source for each paragraph? This usually indicates summary only. When you have multiple sources cited in a paragraph, you are more likely to be synthesizing them (not always, but often
- Read more about synthesis here.
The most interesting literature reviews are often written as arguments (again, as mentioned at the beginning of the page, this is discipline-specific and doesn’t work for all situations). Often, the literature review is where you can establish your research as filling a particular gap or as relevant in a particular way. You have some chance to do this in your introduction in an article, but the literature review section gives a more extended opportunity to establish the conversation in the way you would like your readers to see it. You can choose the intellectual lineage you would like to be part of and whose definitions matter most to your thinking (mostly humanities-specific, but this goes for sciences as well). In addressing these points, you argue for your place in the conversation, which tends to make the lit review more compelling than a simple reporting of other sources.
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- How to Write a Literature Review | Guide, Examples, & Templates
How to Write a Literature Review | Guide, Examples, & Templates
Published on January 2, 2023 by Shona McCombes . Revised on September 11, 2023.
What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research that you can later apply to your paper, thesis, or dissertation topic .
There are five key steps to writing a literature review:
- Search for relevant literature
- Evaluate sources
- Identify themes, debates, and gaps
- Outline the structure
- Write your literature review
A good literature review doesn’t just summarize sources—it analyzes, synthesizes , and critically evaluates to give a clear picture of the state of knowledge on the subject.
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Table of contents
What is the purpose of a literature review, examples of literature reviews, step 1 – search for relevant literature, step 2 – evaluate and select sources, step 3 – identify themes, debates, and gaps, step 4 – outline your literature review’s structure, step 5 – write your literature review, free lecture slides, other interesting articles, frequently asked questions, introduction.
- Quick Run-through
- Step 1 & 2
When you write a thesis , dissertation , or research paper , you will likely have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:
- Demonstrate your familiarity with the topic and its scholarly context
- Develop a theoretical framework and methodology for your research
- Position your work in relation to other researchers and theorists
- Show how your research addresses a gap or contributes to a debate
- Evaluate the current state of research and demonstrate your knowledge of the scholarly debates around your topic.
Writing literature reviews is a particularly important skill if you want to apply for graduate school or pursue a career in research. We’ve written a step-by-step guide that you can follow below.
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Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.
- Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
- Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
- Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
- Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)
You can also check out our templates with literature review examples and sample outlines at the links below.
Download Word doc Download Google doc
Before you begin searching for literature, you need a clearly defined topic .
If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research problem and questions .
Make a list of keywords
Start by creating a list of keywords related to your research question. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list as you discover new keywords in the process of your literature search.
- Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
- Body image, self-perception, self-esteem, mental health
- Generation Z, teenagers, adolescents, youth
Search for relevant sources
Use your keywords to begin searching for sources. Some useful databases to search for journals and articles include:
- Your university’s library catalogue
- Google Scholar
- Project Muse (humanities and social sciences)
- Medline (life sciences and biomedicine)
- EconLit (economics)
- Inspec (physics, engineering and computer science)
You can also use boolean operators to help narrow down your search.
Make sure to read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.
You likely won’t be able to read absolutely everything that has been written on your topic, so it will be necessary to evaluate which sources are most relevant to your research question.
For each publication, ask yourself:
- What question or problem is the author addressing?
- What are the key concepts and how are they defined?
- What are the key theories, models, and methods?
- Does the research use established frameworks or take an innovative approach?
- What are the results and conclusions of the study?
- How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
- What are the strengths and weaknesses of the research?
Make sure the sources you use are credible , and make sure you read any landmark studies and major theories in your field of research.
You can use our template to summarize and evaluate sources you’re thinking about using. Click on either button below to download.
Take notes and cite your sources
As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.
It is important to keep track of your sources with citations to avoid plagiarism . It can be helpful to make an annotated bibliography , where you compile full citation information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.
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To begin organizing your literature review’s argument and structure, be sure you understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:
- Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
- Themes: what questions or concepts recur across the literature?
- Debates, conflicts and contradictions: where do sources disagree?
- Pivotal publications: are there any influential theories or studies that changed the direction of the field?
- Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?
This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.
- Most research has focused on young women.
- There is an increasing interest in the visual aspects of social media.
- But there is still a lack of robust research on highly visual platforms like Instagram and Snapchat—this is a gap that you could address in your own research.
There are various approaches to organizing the body of a literature review. Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).
Chronological
The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarizing sources in order.
Try to analyze patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.
If you have found some recurring central themes, you can organize your literature review into subsections that address different aspects of the topic.
For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.
Methodological
If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:
- Look at what results have emerged in qualitative versus quantitative research
- Discuss how the topic has been approached by empirical versus theoretical scholarship
- Divide the literature into sociological, historical, and cultural sources
Theoretical
A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.
You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.
Like any other academic text , your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.
The introduction should clearly establish the focus and purpose of the literature review.
Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.
As you write, you can follow these tips:
- Summarize and synthesize: give an overview of the main points of each source and combine them into a coherent whole
- Analyze and interpret: don’t just paraphrase other researchers — add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
- Critically evaluate: mention the strengths and weaknesses of your sources
- Write in well-structured paragraphs: use transition words and topic sentences to draw connections, comparisons and contrasts
In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance.
When you’ve finished writing and revising your literature review, don’t forget to proofread thoroughly before submitting. Not a language expert? Check out Scribbr’s professional proofreading services !
This article has been adapted into lecture slides that you can use to teach your students about writing a literature review.
Scribbr slides are free to use, customize, and distribute for educational purposes.
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If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.
- Sampling methods
- Simple random sampling
- Stratified sampling
- Cluster sampling
- Likert scales
- Reproducibility
Statistics
- Null hypothesis
- Statistical power
- Probability distribution
- Effect size
- Poisson distribution
Research bias
- Optimism bias
- Cognitive bias
- Implicit bias
- Hawthorne effect
- Anchoring bias
- Explicit bias
A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .
It is often written as part of a thesis, dissertation , or research paper , in order to situate your work in relation to existing knowledge.
There are several reasons to conduct a literature review at the beginning of a research project:
- To familiarize yourself with the current state of knowledge on your topic
- To ensure that you’re not just repeating what others have already done
- To identify gaps in knowledge and unresolved problems that your research can address
- To develop your theoretical framework and methodology
- To provide an overview of the key findings and debates on the topic
Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.
The literature review usually comes near the beginning of your thesis or dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .
A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other academic texts , with an introduction , a main body, and a conclusion .
An annotated bibliography is a list of source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a paper .
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What is a Literature Review? How to Write It (with Examples)
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A literature review is a critical analysis and synthesis of existing research on a particular topic. It provides an overview of the current state of knowledge, identifies gaps, and highlights key findings in the literature. 1 The purpose of a literature review is to situate your own research within the context of existing scholarship, demonstrating your understanding of the topic and showing how your work contributes to the ongoing conversation in the field. Learning how to write a literature review is a critical tool for successful research. Your ability to summarize and synthesize prior research pertaining to a certain topic demonstrates your grasp on the topic of study, and assists in the learning process.
Table of Contents
- What is the purpose of literature review?
- a. Habitat Loss and Species Extinction:
- b. Range Shifts and Phenological Changes:
- c. Ocean Acidification and Coral Reefs:
- d. Adaptive Strategies and Conservation Efforts:
How to write a good literature review
- Choose a Topic and Define the Research Question:
- Decide on the Scope of Your Review:
- Select Databases for Searches:
- Conduct Searches and Keep Track:
- Review the Literature:
- Organize and Write Your Literature Review:
- How to write a literature review faster with Paperpal?
- Frequently asked questions
What is a literature review?
A well-conducted literature review demonstrates the researcher’s familiarity with the existing literature, establishes the context for their own research, and contributes to scholarly conversations on the topic. One of the purposes of a literature review is also to help researchers avoid duplicating previous work and ensure that their research is informed by and builds upon the existing body of knowledge.
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What is the purpose of literature review?
A literature review serves several important purposes within academic and research contexts. Here are some key objectives and functions of a literature review: 2
1. Contextualizing the Research Problem: The literature review provides a background and context for the research problem under investigation. It helps to situate the study within the existing body of knowledge.
2. Identifying Gaps in Knowledge: By identifying gaps, contradictions, or areas requiring further research, the researcher can shape the research question and justify the significance of the study. This is crucial for ensuring that the new research contributes something novel to the field.
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3. Understanding Theoretical and Conceptual Frameworks: Literature reviews help researchers gain an understanding of the theoretical and conceptual frameworks used in previous studies. This aids in the development of a theoretical framework for the current research.
4. Providing Methodological Insights: Another purpose of literature reviews is that it allows researchers to learn about the methodologies employed in previous studies. This can help in choosing appropriate research methods for the current study and avoiding pitfalls that others may have encountered.
5. Establishing Credibility: A well-conducted literature review demonstrates the researcher’s familiarity with existing scholarship, establishing their credibility and expertise in the field. It also helps in building a solid foundation for the new research.
6. Informing Hypotheses or Research Questions: The literature review guides the formulation of hypotheses or research questions by highlighting relevant findings and areas of uncertainty in existing literature.
Literature review example
Let’s delve deeper with a literature review example: Let’s say your literature review is about the impact of climate change on biodiversity. You might format your literature review into sections such as the effects of climate change on habitat loss and species extinction, phenological changes, and marine biodiversity. Each section would then summarize and analyze relevant studies in those areas, highlighting key findings and identifying gaps in the research. The review would conclude by emphasizing the need for further research on specific aspects of the relationship between climate change and biodiversity. The following literature review template provides a glimpse into the recommended literature review structure and content, demonstrating how research findings are organized around specific themes within a broader topic.
Literature Review on Climate Change Impacts on Biodiversity:
Climate change is a global phenomenon with far-reaching consequences, including significant impacts on biodiversity. This literature review synthesizes key findings from various studies:
a. Habitat Loss and Species Extinction:
Climate change-induced alterations in temperature and precipitation patterns contribute to habitat loss, affecting numerous species (Thomas et al., 2004). The review discusses how these changes increase the risk of extinction, particularly for species with specific habitat requirements.
b. Range Shifts and Phenological Changes:
Observations of range shifts and changes in the timing of biological events (phenology) are documented in response to changing climatic conditions (Parmesan & Yohe, 2003). These shifts affect ecosystems and may lead to mismatches between species and their resources.
c. Ocean Acidification and Coral Reefs:
The review explores the impact of climate change on marine biodiversity, emphasizing ocean acidification’s threat to coral reefs (Hoegh-Guldberg et al., 2007). Changes in pH levels negatively affect coral calcification, disrupting the delicate balance of marine ecosystems.
d. Adaptive Strategies and Conservation Efforts:
Recognizing the urgency of the situation, the literature review discusses various adaptive strategies adopted by species and conservation efforts aimed at mitigating the impacts of climate change on biodiversity (Hannah et al., 2007). It emphasizes the importance of interdisciplinary approaches for effective conservation planning.
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Writing a literature review involves summarizing and synthesizing existing research on a particular topic. A good literature review format should include the following elements.
Introduction: The introduction sets the stage for your literature review, providing context and introducing the main focus of your review.
- Opening Statement: Begin with a general statement about the broader topic and its significance in the field.
- Scope and Purpose: Clearly define the scope of your literature review. Explain the specific research question or objective you aim to address.
- Organizational Framework: Briefly outline the structure of your literature review, indicating how you will categorize and discuss the existing research.
- Significance of the Study: Highlight why your literature review is important and how it contributes to the understanding of the chosen topic.
- Thesis Statement: Conclude the introduction with a concise thesis statement that outlines the main argument or perspective you will develop in the body of the literature review.
Body: The body of the literature review is where you provide a comprehensive analysis of existing literature, grouping studies based on themes, methodologies, or other relevant criteria.
- Organize by Theme or Concept: Group studies that share common themes, concepts, or methodologies. Discuss each theme or concept in detail, summarizing key findings and identifying gaps or areas of disagreement.
- Critical Analysis: Evaluate the strengths and weaknesses of each study. Discuss the methodologies used, the quality of evidence, and the overall contribution of each work to the understanding of the topic.
- Synthesis of Findings: Synthesize the information from different studies to highlight trends, patterns, or areas of consensus in the literature.
- Identification of Gaps: Discuss any gaps or limitations in the existing research and explain how your review contributes to filling these gaps.
- Transition between Sections: Provide smooth transitions between different themes or concepts to maintain the flow of your literature review.
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Conclusion: The conclusion of your literature review should summarize the main findings, highlight the contributions of the review, and suggest avenues for future research.
- Summary of Key Findings: Recap the main findings from the literature and restate how they contribute to your research question or objective.
- Contributions to the Field: Discuss the overall contribution of your literature review to the existing knowledge in the field.
- Implications and Applications: Explore the practical implications of the findings and suggest how they might impact future research or practice.
- Recommendations for Future Research: Identify areas that require further investigation and propose potential directions for future research in the field.
- Final Thoughts: Conclude with a final reflection on the importance of your literature review and its relevance to the broader academic community.
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Conducting a literature review
Conducting a literature review is an essential step in research that involves reviewing and analyzing existing literature on a specific topic. It’s important to know how to do a literature review effectively, so here are the steps to follow: 1
Choose a Topic and Define the Research Question:
- Select a topic that is relevant to your field of study.
- Clearly define your research question or objective. Determine what specific aspect of the topic do you want to explore?
Decide on the Scope of Your Review:
- Determine the timeframe for your literature review. Are you focusing on recent developments, or do you want a historical overview?
- Consider the geographical scope. Is your review global, or are you focusing on a specific region?
- Define the inclusion and exclusion criteria. What types of sources will you include? Are there specific types of studies or publications you will exclude?
Select Databases for Searches:
- Identify relevant databases for your field. Examples include PubMed, IEEE Xplore, Scopus, Web of Science, and Google Scholar.
- Consider searching in library catalogs, institutional repositories, and specialized databases related to your topic.
Conduct Searches and Keep Track:
- Develop a systematic search strategy using keywords, Boolean operators (AND, OR, NOT), and other search techniques.
- Record and document your search strategy for transparency and replicability.
- Keep track of the articles, including publication details, abstracts, and links. Use citation management tools like EndNote, Zotero, or Mendeley to organize your references.
Review the Literature:
- Evaluate the relevance and quality of each source. Consider the methodology, sample size, and results of studies.
- Organize the literature by themes or key concepts. Identify patterns, trends, and gaps in the existing research.
- Summarize key findings and arguments from each source. Compare and contrast different perspectives.
- Identify areas where there is a consensus in the literature and where there are conflicting opinions.
- Provide critical analysis and synthesis of the literature. What are the strengths and weaknesses of existing research?
Organize and Write Your Literature Review:
- Literature review outline should be based on themes, chronological order, or methodological approaches.
- Write a clear and coherent narrative that synthesizes the information gathered.
- Use proper citations for each source and ensure consistency in your citation style (APA, MLA, Chicago, etc.).
- Conclude your literature review by summarizing key findings, identifying gaps, and suggesting areas for future research.
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How to write a literature review faster with Paperpal?
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Here’s how to use the Research feature:
- Ask a question: Get started with a new document on paperpal.com. Click on the “Research” feature and type your question in plain English. Paperpal will scour over 250 million research articles, including conference papers and preprints, to provide you with accurate insights and citations.
- Review and Save: Paperpal summarizes the information, while citing sources and listing relevant reads. You can quickly scan the results to identify relevant references and save these directly to your built-in citations library for later access.
- Cite with Confidence: Paperpal makes it easy to incorporate relevant citations and references into your writing, ensuring your arguments are well-supported by credible sources. This translates to a polished, well-researched literature review.
The literature review sample and detailed advice on writing and conducting a review will help you produce a well-structured report. But remember that a good literature review is an ongoing process, and it may be necessary to revisit and update it as your research progresses. By combining effortless research with an easy citation process, Paperpal Research streamlines the literature review process and empowers you to write faster and with more confidence. Try Paperpal Research now and see for yourself.
Frequently asked questions
A literature review is a critical and comprehensive analysis of existing literature (published and unpublished works) on a specific topic or research question and provides a synthesis of the current state of knowledge in a particular field. A well-conducted literature review is crucial for researchers to build upon existing knowledge, avoid duplication of efforts, and contribute to the advancement of their field. It also helps researchers situate their work within a broader context and facilitates the development of a sound theoretical and conceptual framework for their studies.
Literature review is a crucial component of research writing, providing a solid background for a research paper’s investigation. The aim is to keep professionals up to date by providing an understanding of ongoing developments within a specific field, including research methods, and experimental techniques used in that field, and present that knowledge in the form of a written report. Also, the depth and breadth of the literature review emphasizes the credibility of the scholar in his or her field.
Before writing a literature review, it’s essential to undertake several preparatory steps to ensure that your review is well-researched, organized, and focused. This includes choosing a topic of general interest to you and doing exploratory research on that topic, writing an annotated bibliography, and noting major points, especially those that relate to the position you have taken on the topic.
Literature reviews and academic research papers are essential components of scholarly work but serve different purposes within the academic realm. 3 A literature review aims to provide a foundation for understanding the current state of research on a particular topic, identify gaps or controversies, and lay the groundwork for future research. Therefore, it draws heavily from existing academic sources, including books, journal articles, and other scholarly publications. In contrast, an academic research paper aims to present new knowledge, contribute to the academic discourse, and advance the understanding of a specific research question. Therefore, it involves a mix of existing literature (in the introduction and literature review sections) and original data or findings obtained through research methods.
Literature reviews are essential components of academic and research papers, and various strategies can be employed to conduct them effectively. If you want to know how to write a literature review for a research paper, here are four common approaches that are often used by researchers. Chronological Review: This strategy involves organizing the literature based on the chronological order of publication. It helps to trace the development of a topic over time, showing how ideas, theories, and research have evolved. Thematic Review: Thematic reviews focus on identifying and analyzing themes or topics that cut across different studies. Instead of organizing the literature chronologically, it is grouped by key themes or concepts, allowing for a comprehensive exploration of various aspects of the topic. Methodological Review: This strategy involves organizing the literature based on the research methods employed in different studies. It helps to highlight the strengths and weaknesses of various methodologies and allows the reader to evaluate the reliability and validity of the research findings. Theoretical Review: A theoretical review examines the literature based on the theoretical frameworks used in different studies. This approach helps to identify the key theories that have been applied to the topic and assess their contributions to the understanding of the subject. It’s important to note that these strategies are not mutually exclusive, and a literature review may combine elements of more than one approach. The choice of strategy depends on the research question, the nature of the literature available, and the goals of the review. Additionally, other strategies, such as integrative reviews or systematic reviews, may be employed depending on the specific requirements of the research.
The literature review format can vary depending on the specific publication guidelines. However, there are some common elements and structures that are often followed. Here is a general guideline for the format of a literature review: Introduction: Provide an overview of the topic. Define the scope and purpose of the literature review. State the research question or objective. Body: Organize the literature by themes, concepts, or chronology. Critically analyze and evaluate each source. Discuss the strengths and weaknesses of the studies. Highlight any methodological limitations or biases. Identify patterns, connections, or contradictions in the existing research. Conclusion: Summarize the key points discussed in the literature review. Highlight the research gap. Address the research question or objective stated in the introduction. Highlight the contributions of the review and suggest directions for future research.
Both annotated bibliographies and literature reviews involve the examination of scholarly sources. While annotated bibliographies focus on individual sources with brief annotations, literature reviews provide a more in-depth, integrated, and comprehensive analysis of existing literature on a specific topic. The key differences are as follows:
Annotated Bibliography | Literature Review | |
Purpose | List of citations of books, articles, and other sources with a brief description (annotation) of each source. | Comprehensive and critical analysis of existing literature on a specific topic. |
Focus | Summary and evaluation of each source, including its relevance, methodology, and key findings. | Provides an overview of the current state of knowledge on a particular subject and identifies gaps, trends, and patterns in existing literature. |
Structure | Each citation is followed by a concise paragraph (annotation) that describes the source’s content, methodology, and its contribution to the topic. | The literature review is organized thematically or chronologically and involves a synthesis of the findings from different sources to build a narrative or argument. |
Length | Typically 100-200 words | Length of literature review ranges from a few pages to several chapters |
Independence | Each source is treated separately, with less emphasis on synthesizing the information across sources. | The writer synthesizes information from multiple sources to present a cohesive overview of the topic. |
References
- Denney, A. S., & Tewksbury, R. (2013). How to write a literature review. Journal of criminal justice education , 24 (2), 218-234.
- Pan, M. L. (2016). Preparing literature reviews: Qualitative and quantitative approaches . Taylor & Francis.
- Cantero, C. (2019). How to write a literature review. San José State University Writing Center .
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What is a literature review? [with examples]
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What is a literature review?
The purpose of a literature review, how to write a literature review, the format of a literature review, general formatting rules, the length of a literature review, literature review examples, frequently asked questions about literature reviews, related articles.
A literature review is an assessment of the sources in a chosen topic of research.
In a literature review, you’re expected to report on the existing scholarly conversation, without adding new contributions.
If you are currently writing one, you've come to the right place. In the following paragraphs, we will explain:
- the objective of a literature review
- how to write a literature review
- the basic format of a literature review
Tip: It’s not always mandatory to add a literature review in a paper. Theses and dissertations often include them, whereas research papers may not. Make sure to consult with your instructor for exact requirements.
The four main objectives of a literature review are:
- Studying the references of your research area
- Summarizing the main arguments
- Identifying current gaps, stances, and issues
- Presenting all of the above in a text
Ultimately, the main goal of a literature review is to provide the researcher with sufficient knowledge about the topic in question so that they can eventually make an intervention.
The format of a literature review is fairly standard. It includes an:
- introduction that briefly introduces the main topic
- body that includes the main discussion of the key arguments
- conclusion that highlights the gaps and issues of the literature
➡️ Take a look at our guide on how to write a literature review to learn more about how to structure a literature review.
First of all, a literature review should have its own labeled section. You should indicate clearly in the table of contents where the literature can be found, and you should label this section as “Literature Review.”
➡️ For more information on writing a thesis, visit our guide on how to structure a thesis .
There is no set amount of words for a literature review, so the length depends on the research. If you are working with a large amount of sources, it will be long. If your paper does not depend entirely on references, it will be short.
Take a look at these three theses featuring great literature reviews:
- School-Based Speech-Language Pathologist's Perceptions of Sensory Food Aversions in Children [ PDF , see page 20]
- Who's Writing What We Read: Authorship in Criminological Research [ PDF , see page 4]
- A Phenomenological Study of the Lived Experience of Online Instructors of Theological Reflection at Christian Institutions Accredited by the Association of Theological Schools [ PDF , see page 56]
Literature reviews are most commonly found in theses and dissertations. However, you find them in research papers as well.
There is no set amount of words for a literature review, so the length depends on the research. If you are working with a large amount of sources, then it will be long. If your paper does not depend entirely on references, then it will be short.
No. A literature review should have its own independent section. You should indicate clearly in the table of contents where the literature review can be found, and label this section as “Literature Review.”
The main goal of a literature review is to provide the researcher with sufficient knowledge about the topic in question so that they can eventually make an intervention.
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Literature Reviews
- Getting started
What is a literature review?
Why conduct a literature review, stages of a literature review, lit reviews: an overview (video), check out these books.
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- 1. Define your research question
- 2. Plan your search
- 3. Search the literature
- 4. Organize your results
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Definition: A literature review is a systematic examination and synthesis of existing scholarly research on a specific topic or subject.
Purpose: It serves to provide a comprehensive overview of the current state of knowledge within a particular field.
Analysis: Involves critically evaluating and summarizing key findings, methodologies, and debates found in academic literature.
Identifying Gaps: Aims to pinpoint areas where there is a lack of research or unresolved questions, highlighting opportunities for further investigation.
Contextualization: Enables researchers to understand how their work fits into the broader academic conversation and contributes to the existing body of knowledge.
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tl;dr A literature review critically examines and synthesizes existing scholarly research and publications on a specific topic to provide a comprehensive understanding of the current state of knowledge in the field.
What is a literature review NOT?
❌ An annotated bibliography
❌ Original research
❌ A summary
❌ Something to be conducted at the end of your research
❌ An opinion piece
❌ A chronological compilation of studies
The reason for conducting a literature review is to:
What has been written about your topic? What is the evidence for your topic? What methods, key concepts, and theories relate to your topic? Are there current gaps in knowledge or new questions to be asked? | |
Bring your reader up to date Further your reader's understanding of the topic | |
Provide evidence of... - your knowledge on the topic's theory - your understanding of the research process - your ability to critically evaluate and analyze information - that you're up to date on the literature |
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Literature Reviews: An Overview for Graduate Students
While this 9-minute video from NCSU is geared toward graduate students, it is useful for anyone conducting a literature review.
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Literature Reviews
What this handout is about.
This handout will explain what literature reviews are and offer insights into the form and construction of literature reviews in the humanities, social sciences, and sciences.
Introduction
OK. You’ve got to write a literature review. You dust off a novel and a book of poetry, settle down in your chair, and get ready to issue a “thumbs up” or “thumbs down” as you leaf through the pages. “Literature review” done. Right?
Wrong! The “literature” of a literature review refers to any collection of materials on a topic, not necessarily the great literary texts of the world. “Literature” could be anything from a set of government pamphlets on British colonial methods in Africa to scholarly articles on the treatment of a torn ACL. And a review does not necessarily mean that your reader wants you to give your personal opinion on whether or not you liked these sources.
What is a literature review, then?
A literature review discusses published information in a particular subject area, and sometimes information in a particular subject area within a certain time period.
A literature review can be just a simple summary of the sources, but it usually has an organizational pattern and combines both summary and synthesis. A summary is a recap of the important information of the source, but a synthesis is a re-organization, or a reshuffling, of that information. It might give a new interpretation of old material or combine new with old interpretations. Or it might trace the intellectual progression of the field, including major debates. And depending on the situation, the literature review may evaluate the sources and advise the reader on the most pertinent or relevant.
But how is a literature review different from an academic research paper?
The main focus of an academic research paper is to develop a new argument, and a research paper is likely to contain a literature review as one of its parts. In a research paper, you use the literature as a foundation and as support for a new insight that you contribute. The focus of a literature review, however, is to summarize and synthesize the arguments and ideas of others without adding new contributions.
Why do we write literature reviews?
Literature reviews provide you with a handy guide to a particular topic. If you have limited time to conduct research, literature reviews can give you an overview or act as a stepping stone. For professionals, they are useful reports that keep them up to date with what is current in the field. For scholars, the depth and breadth of the literature review emphasizes the credibility of the writer in his or her field. Literature reviews also provide a solid background for a research paper’s investigation. Comprehensive knowledge of the literature of the field is essential to most research papers.
Who writes these things, anyway?
Literature reviews are written occasionally in the humanities, but mostly in the sciences and social sciences; in experiment and lab reports, they constitute a section of the paper. Sometimes a literature review is written as a paper in itself.
Let’s get to it! What should I do before writing the literature review?
If your assignment is not very specific, seek clarification from your instructor:
- Roughly how many sources should you include?
- What types of sources (books, journal articles, websites)?
- Should you summarize, synthesize, or critique your sources by discussing a common theme or issue?
- Should you evaluate your sources?
- Should you provide subheadings and other background information, such as definitions and/or a history?
Find models
Look for other literature reviews in your area of interest or in the discipline and read them to get a sense of the types of themes you might want to look for in your own research or ways to organize your final review. You can simply put the word “review” in your search engine along with your other topic terms to find articles of this type on the Internet or in an electronic database. The bibliography or reference section of sources you’ve already read are also excellent entry points into your own research.
Narrow your topic
There are hundreds or even thousands of articles and books on most areas of study. The narrower your topic, the easier it will be to limit the number of sources you need to read in order to get a good survey of the material. Your instructor will probably not expect you to read everything that’s out there on the topic, but you’ll make your job easier if you first limit your scope.
Keep in mind that UNC Libraries have research guides and to databases relevant to many fields of study. You can reach out to the subject librarian for a consultation: https://library.unc.edu/support/consultations/ .
And don’t forget to tap into your professor’s (or other professors’) knowledge in the field. Ask your professor questions such as: “If you had to read only one book from the 90’s on topic X, what would it be?” Questions such as this help you to find and determine quickly the most seminal pieces in the field.
Consider whether your sources are current
Some disciplines require that you use information that is as current as possible. In the sciences, for instance, treatments for medical problems are constantly changing according to the latest studies. Information even two years old could be obsolete. However, if you are writing a review in the humanities, history, or social sciences, a survey of the history of the literature may be what is needed, because what is important is how perspectives have changed through the years or within a certain time period. Try sorting through some other current bibliographies or literature reviews in the field to get a sense of what your discipline expects. You can also use this method to consider what is currently of interest to scholars in this field and what is not.
Strategies for writing the literature review
Find a focus.
A literature review, like a term paper, is usually organized around ideas, not the sources themselves as an annotated bibliography would be organized. This means that you will not just simply list your sources and go into detail about each one of them, one at a time. No. As you read widely but selectively in your topic area, consider instead what themes or issues connect your sources together. Do they present one or different solutions? Is there an aspect of the field that is missing? How well do they present the material and do they portray it according to an appropriate theory? Do they reveal a trend in the field? A raging debate? Pick one of these themes to focus the organization of your review.
Convey it to your reader
A literature review may not have a traditional thesis statement (one that makes an argument), but you do need to tell readers what to expect. Try writing a simple statement that lets the reader know what is your main organizing principle. Here are a couple of examples:
The current trend in treatment for congestive heart failure combines surgery and medicine. More and more cultural studies scholars are accepting popular media as a subject worthy of academic consideration.
Consider organization
You’ve got a focus, and you’ve stated it clearly and directly. Now what is the most effective way of presenting the information? What are the most important topics, subtopics, etc., that your review needs to include? And in what order should you present them? Develop an organization for your review at both a global and local level:
First, cover the basic categories
Just like most academic papers, literature reviews also must contain at least three basic elements: an introduction or background information section; the body of the review containing the discussion of sources; and, finally, a conclusion and/or recommendations section to end the paper. The following provides a brief description of the content of each:
- Introduction: Gives a quick idea of the topic of the literature review, such as the central theme or organizational pattern.
- Body: Contains your discussion of sources and is organized either chronologically, thematically, or methodologically (see below for more information on each).
- Conclusions/Recommendations: Discuss what you have drawn from reviewing literature so far. Where might the discussion proceed?
Organizing the body
Once you have the basic categories in place, then you must consider how you will present the sources themselves within the body of your paper. Create an organizational method to focus this section even further.
To help you come up with an overall organizational framework for your review, consider the following scenario:
You’ve decided to focus your literature review on materials dealing with sperm whales. This is because you’ve just finished reading Moby Dick, and you wonder if that whale’s portrayal is really real. You start with some articles about the physiology of sperm whales in biology journals written in the 1980’s. But these articles refer to some British biological studies performed on whales in the early 18th century. So you check those out. Then you look up a book written in 1968 with information on how sperm whales have been portrayed in other forms of art, such as in Alaskan poetry, in French painting, or on whale bone, as the whale hunters in the late 19th century used to do. This makes you wonder about American whaling methods during the time portrayed in Moby Dick, so you find some academic articles published in the last five years on how accurately Herman Melville portrayed the whaling scene in his novel.
Now consider some typical ways of organizing the sources into a review:
- Chronological: If your review follows the chronological method, you could write about the materials above according to when they were published. For instance, first you would talk about the British biological studies of the 18th century, then about Moby Dick, published in 1851, then the book on sperm whales in other art (1968), and finally the biology articles (1980s) and the recent articles on American whaling of the 19th century. But there is relatively no continuity among subjects here. And notice that even though the sources on sperm whales in other art and on American whaling are written recently, they are about other subjects/objects that were created much earlier. Thus, the review loses its chronological focus.
- By publication: Order your sources by publication chronology, then, only if the order demonstrates a more important trend. For instance, you could order a review of literature on biological studies of sperm whales if the progression revealed a change in dissection practices of the researchers who wrote and/or conducted the studies.
- By trend: A better way to organize the above sources chronologically is to examine the sources under another trend, such as the history of whaling. Then your review would have subsections according to eras within this period. For instance, the review might examine whaling from pre-1600-1699, 1700-1799, and 1800-1899. Under this method, you would combine the recent studies on American whaling in the 19th century with Moby Dick itself in the 1800-1899 category, even though the authors wrote a century apart.
- Thematic: Thematic reviews of literature are organized around a topic or issue, rather than the progression of time. However, progression of time may still be an important factor in a thematic review. For instance, the sperm whale review could focus on the development of the harpoon for whale hunting. While the study focuses on one topic, harpoon technology, it will still be organized chronologically. The only difference here between a “chronological” and a “thematic” approach is what is emphasized the most: the development of the harpoon or the harpoon technology.But more authentic thematic reviews tend to break away from chronological order. For instance, a thematic review of material on sperm whales might examine how they are portrayed as “evil” in cultural documents. The subsections might include how they are personified, how their proportions are exaggerated, and their behaviors misunderstood. A review organized in this manner would shift between time periods within each section according to the point made.
- Methodological: A methodological approach differs from the two above in that the focusing factor usually does not have to do with the content of the material. Instead, it focuses on the “methods” of the researcher or writer. For the sperm whale project, one methodological approach would be to look at cultural differences between the portrayal of whales in American, British, and French art work. Or the review might focus on the economic impact of whaling on a community. A methodological scope will influence either the types of documents in the review or the way in which these documents are discussed. Once you’ve decided on the organizational method for the body of the review, the sections you need to include in the paper should be easy to figure out. They should arise out of your organizational strategy. In other words, a chronological review would have subsections for each vital time period. A thematic review would have subtopics based upon factors that relate to the theme or issue.
Sometimes, though, you might need to add additional sections that are necessary for your study, but do not fit in the organizational strategy of the body. What other sections you include in the body is up to you. Put in only what is necessary. Here are a few other sections you might want to consider:
- Current Situation: Information necessary to understand the topic or focus of the literature review.
- History: The chronological progression of the field, the literature, or an idea that is necessary to understand the literature review, if the body of the literature review is not already a chronology.
- Methods and/or Standards: The criteria you used to select the sources in your literature review or the way in which you present your information. For instance, you might explain that your review includes only peer-reviewed articles and journals.
Questions for Further Research: What questions about the field has the review sparked? How will you further your research as a result of the review?
Begin composing
Once you’ve settled on a general pattern of organization, you’re ready to write each section. There are a few guidelines you should follow during the writing stage as well. Here is a sample paragraph from a literature review about sexism and language to illuminate the following discussion:
However, other studies have shown that even gender-neutral antecedents are more likely to produce masculine images than feminine ones (Gastil, 1990). Hamilton (1988) asked students to complete sentences that required them to fill in pronouns that agreed with gender-neutral antecedents such as “writer,” “pedestrian,” and “persons.” The students were asked to describe any image they had when writing the sentence. Hamilton found that people imagined 3.3 men to each woman in the masculine “generic” condition and 1.5 men per woman in the unbiased condition. Thus, while ambient sexism accounted for some of the masculine bias, sexist language amplified the effect. (Source: Erika Falk and Jordan Mills, “Why Sexist Language Affects Persuasion: The Role of Homophily, Intended Audience, and Offense,” Women and Language19:2).
Use evidence
In the example above, the writers refer to several other sources when making their point. A literature review in this sense is just like any other academic research paper. Your interpretation of the available sources must be backed up with evidence to show that what you are saying is valid.
Be selective
Select only the most important points in each source to highlight in the review. The type of information you choose to mention should relate directly to the review’s focus, whether it is thematic, methodological, or chronological.
Use quotes sparingly
Falk and Mills do not use any direct quotes. That is because the survey nature of the literature review does not allow for in-depth discussion or detailed quotes from the text. Some short quotes here and there are okay, though, if you want to emphasize a point, or if what the author said just cannot be rewritten in your own words. Notice that Falk and Mills do quote certain terms that were coined by the author, not common knowledge, or taken directly from the study. But if you find yourself wanting to put in more quotes, check with your instructor.
Summarize and synthesize
Remember to summarize and synthesize your sources within each paragraph as well as throughout the review. The authors here recapitulate important features of Hamilton’s study, but then synthesize it by rephrasing the study’s significance and relating it to their own work.
Keep your own voice
While the literature review presents others’ ideas, your voice (the writer’s) should remain front and center. Notice that Falk and Mills weave references to other sources into their own text, but they still maintain their own voice by starting and ending the paragraph with their own ideas and their own words. The sources support what Falk and Mills are saying.
Use caution when paraphrasing
When paraphrasing a source that is not your own, be sure to represent the author’s information or opinions accurately and in your own words. In the preceding example, Falk and Mills either directly refer in the text to the author of their source, such as Hamilton, or they provide ample notation in the text when the ideas they are mentioning are not their own, for example, Gastil’s. For more information, please see our handout on plagiarism .
Revise, revise, revise
Draft in hand? Now you’re ready to revise. Spending a lot of time revising is a wise idea, because your main objective is to present the material, not the argument. So check over your review again to make sure it follows the assignment and/or your outline. Then, just as you would for most other academic forms of writing, rewrite or rework the language of your review so that you’ve presented your information in the most concise manner possible. Be sure to use terminology familiar to your audience; get rid of unnecessary jargon or slang. Finally, double check that you’ve documented your sources and formatted the review appropriately for your discipline. For tips on the revising and editing process, see our handout on revising drafts .
Works consulted
We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.
Anson, Chris M., and Robert A. Schwegler. 2010. The Longman Handbook for Writers and Readers , 6th ed. New York: Longman.
Jones, Robert, Patrick Bizzaro, and Cynthia Selfe. 1997. The Harcourt Brace Guide to Writing in the Disciplines . New York: Harcourt Brace.
Lamb, Sandra E. 1998. How to Write It: A Complete Guide to Everything You’ll Ever Write . Berkeley: Ten Speed Press.
Rosen, Leonard J., and Laurence Behrens. 2003. The Allyn & Bacon Handbook , 5th ed. New York: Longman.
Troyka, Lynn Quittman, and Doug Hesse. 2016. Simon and Schuster Handbook for Writers , 11th ed. London: Pearson.
You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill
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- Palgrave's Study Guide to Carrying Out a Literature Review Your research is seen as a contribution to knowledge in the field and it needs to indicate, therefore, that there is an awareness of what that knowledge comprises. Read this guide to getting started.
- Purdue OWL's Guide to Writing a Literature Review A literature review requires the writer to perform extensive research on published work in one’s field in order to explain how one’s own work fits into the larger conversation regarding a particular topic. This task requires the writer to spend time reading, managing, and conveying information; the complexity of literature reviews can make this section one of the most challenging parts of writing about one’s research. This handout will provide some strategies for revising literature reviews.
Every time you conduct research, you will need to make it clear where you got your evidence from. This work of citing our sources is absolutely essential for a couple of reasons.
- It demonstrates to the readers of our own research that we have evidence to back up our claims.
- A complete and correct citation directs readers to the original source for them to verify our claims and learn more.
- It gives credit to the researchers whose intellectual work helped form our own research.
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Learn how to write a review of literature
What is a review of literature.
The format of a review of literature may vary from discipline to discipline and from assignment to assignment.
A review may be a self-contained unit — an end in itself — or a preface to and rationale for engaging in primary research. A review is a required part of grant and research proposals and often a chapter in theses and dissertations.
Generally, the purpose of a review is to analyze critically a segment of a published body of knowledge through summary, classification, and comparison of prior research studies, reviews of literature, and theoretical articles.
Writing the introduction
In the introduction, you should:
Define or identify the general topic, issue, or area of concern, thus providing an appropriate context for reviewing the literature.
Point out overall trends in what has been published about the topic; or conflicts in theory, methodology, evidence, and conclusions; or gaps in research and scholarship; or a single problem or new perspective of immediate interest.
Establish the writer’s reason (point of view) for reviewing the literature; explain the criteria to be used in analyzing and comparing literature and the organization of the review (sequence); and, when necessary, state why certain literature is or is not included (scope).
Writing the body
In the body, you should:
Group research studies and other types of literature (reviews, theoretical articles, case studies, etc.) according to common denominators such as qualitative versus quantitative approaches, conclusions of authors, specific purpose or objective, chronology, etc.
Summarize individual studies or articles with as much or as little detail as each merits according to its comparative importance in the literature, remembering that space (length) denotes significance.
Provide the reader with strong “umbrella” sentences at beginnings of paragraphs, “signposts” throughout, and brief “so what” summary sentences at intermediate points in the review to aid in understanding comparisons and analyses.
Writing the conclusion
In the conclusion, you should:
Summarize major contributions of significant studies and articles to the body of knowledge under review, maintaining the focus established in the introduction.
Evaluate the current “state of the art” for the body of knowledge reviewed, pointing out major methodological flaws or gaps in research, inconsistencies in theory and findings, and areas or issues pertinent to future study.
Conclude by providing some insight into the relationship between the central topic of the literature review and a larger area of study such as a discipline, a scientific endeavor, or a profession.
For further information see our handouts on Writing a Critical Review of a Nonfiction Book or Article or Reading a Book to Review It .
To learn more about literature reviews, take a look at our workshop on Writing Literature Reviews of Published Research.
Sample Literature Reviews
An important strategy for learning how to compose literature reviews in your field or within a specific genre is to locate and analyze representative examples. The following collection of annotated sample literature reviews written and co-written by colleagues associated with UW-Madison showcases how these reviews can do different kind of work for different purposes. Use these successful examples as a starting point for understanding how other writers have approached the challenging and important task of situating their idea in the context of established research.
- Sample 1 (PDF) A brief literature review within a political scientists’ National Science Foundation Graduate Research Fellowship grant
- Sample 2 (PDF) A several-page literature review at the beginning of a published, academic article about philosophy
- Sample 3 (PDF) A brief literature review at the beginning of a published, academic article about photochemistry
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Ten Simple Rules for Writing a Literature Review
Marco pautasso.
1 Centre for Functional and Evolutionary Ecology (CEFE), CNRS, Montpellier, France
2 Centre for Biodiversity Synthesis and Analysis (CESAB), FRB, Aix-en-Provence, France
Literature reviews are in great demand in most scientific fields. Their need stems from the ever-increasing output of scientific publications [1] . For example, compared to 1991, in 2008 three, eight, and forty times more papers were indexed in Web of Science on malaria, obesity, and biodiversity, respectively [2] . Given such mountains of papers, scientists cannot be expected to examine in detail every single new paper relevant to their interests [3] . Thus, it is both advantageous and necessary to rely on regular summaries of the recent literature. Although recognition for scientists mainly comes from primary research, timely literature reviews can lead to new synthetic insights and are often widely read [4] . For such summaries to be useful, however, they need to be compiled in a professional way [5] .
When starting from scratch, reviewing the literature can require a titanic amount of work. That is why researchers who have spent their career working on a certain research issue are in a perfect position to review that literature. Some graduate schools are now offering courses in reviewing the literature, given that most research students start their project by producing an overview of what has already been done on their research issue [6] . However, it is likely that most scientists have not thought in detail about how to approach and carry out a literature review.
Reviewing the literature requires the ability to juggle multiple tasks, from finding and evaluating relevant material to synthesising information from various sources, from critical thinking to paraphrasing, evaluating, and citation skills [7] . In this contribution, I share ten simple rules I learned working on about 25 literature reviews as a PhD and postdoctoral student. Ideas and insights also come from discussions with coauthors and colleagues, as well as feedback from reviewers and editors.
Rule 1: Define a Topic and Audience
How to choose which topic to review? There are so many issues in contemporary science that you could spend a lifetime of attending conferences and reading the literature just pondering what to review. On the one hand, if you take several years to choose, several other people may have had the same idea in the meantime. On the other hand, only a well-considered topic is likely to lead to a brilliant literature review [8] . The topic must at least be:
- interesting to you (ideally, you should have come across a series of recent papers related to your line of work that call for a critical summary),
- an important aspect of the field (so that many readers will be interested in the review and there will be enough material to write it), and
- a well-defined issue (otherwise you could potentially include thousands of publications, which would make the review unhelpful).
Ideas for potential reviews may come from papers providing lists of key research questions to be answered [9] , but also from serendipitous moments during desultory reading and discussions. In addition to choosing your topic, you should also select a target audience. In many cases, the topic (e.g., web services in computational biology) will automatically define an audience (e.g., computational biologists), but that same topic may also be of interest to neighbouring fields (e.g., computer science, biology, etc.).
Rule 2: Search and Re-search the Literature
After having chosen your topic and audience, start by checking the literature and downloading relevant papers. Five pieces of advice here:
- keep track of the search items you use (so that your search can be replicated [10] ),
- keep a list of papers whose pdfs you cannot access immediately (so as to retrieve them later with alternative strategies),
- use a paper management system (e.g., Mendeley, Papers, Qiqqa, Sente),
- define early in the process some criteria for exclusion of irrelevant papers (these criteria can then be described in the review to help define its scope), and
- do not just look for research papers in the area you wish to review, but also seek previous reviews.
The chances are high that someone will already have published a literature review ( Figure 1 ), if not exactly on the issue you are planning to tackle, at least on a related topic. If there are already a few or several reviews of the literature on your issue, my advice is not to give up, but to carry on with your own literature review,
![Click on image to zoom An external file that holds a picture, illustration, etc.
Object name is pcbi.1003149.g001.jpg](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3715443/bin/pcbi.1003149.g001.jpg)
The bottom-right situation (many literature reviews but few research papers) is not just a theoretical situation; it applies, for example, to the study of the impacts of climate change on plant diseases, where there appear to be more literature reviews than research studies [33] .
- discussing in your review the approaches, limitations, and conclusions of past reviews,
- trying to find a new angle that has not been covered adequately in the previous reviews, and
- incorporating new material that has inevitably accumulated since their appearance.
When searching the literature for pertinent papers and reviews, the usual rules apply:
- be thorough,
- use different keywords and database sources (e.g., DBLP, Google Scholar, ISI Proceedings, JSTOR Search, Medline, Scopus, Web of Science), and
- look at who has cited past relevant papers and book chapters.
Rule 3: Take Notes While Reading
If you read the papers first, and only afterwards start writing the review, you will need a very good memory to remember who wrote what, and what your impressions and associations were while reading each single paper. My advice is, while reading, to start writing down interesting pieces of information, insights about how to organize the review, and thoughts on what to write. This way, by the time you have read the literature you selected, you will already have a rough draft of the review.
Of course, this draft will still need much rewriting, restructuring, and rethinking to obtain a text with a coherent argument [11] , but you will have avoided the danger posed by staring at a blank document. Be careful when taking notes to use quotation marks if you are provisionally copying verbatim from the literature. It is advisable then to reformulate such quotes with your own words in the final draft. It is important to be careful in noting the references already at this stage, so as to avoid misattributions. Using referencing software from the very beginning of your endeavour will save you time.
Rule 4: Choose the Type of Review You Wish to Write
After having taken notes while reading the literature, you will have a rough idea of the amount of material available for the review. This is probably a good time to decide whether to go for a mini- or a full review. Some journals are now favouring the publication of rather short reviews focusing on the last few years, with a limit on the number of words and citations. A mini-review is not necessarily a minor review: it may well attract more attention from busy readers, although it will inevitably simplify some issues and leave out some relevant material due to space limitations. A full review will have the advantage of more freedom to cover in detail the complexities of a particular scientific development, but may then be left in the pile of the very important papers “to be read” by readers with little time to spare for major monographs.
There is probably a continuum between mini- and full reviews. The same point applies to the dichotomy of descriptive vs. integrative reviews. While descriptive reviews focus on the methodology, findings, and interpretation of each reviewed study, integrative reviews attempt to find common ideas and concepts from the reviewed material [12] . A similar distinction exists between narrative and systematic reviews: while narrative reviews are qualitative, systematic reviews attempt to test a hypothesis based on the published evidence, which is gathered using a predefined protocol to reduce bias [13] , [14] . When systematic reviews analyse quantitative results in a quantitative way, they become meta-analyses. The choice between different review types will have to be made on a case-by-case basis, depending not just on the nature of the material found and the preferences of the target journal(s), but also on the time available to write the review and the number of coauthors [15] .
Rule 5: Keep the Review Focused, but Make It of Broad Interest
Whether your plan is to write a mini- or a full review, it is good advice to keep it focused 16 , 17 . Including material just for the sake of it can easily lead to reviews that are trying to do too many things at once. The need to keep a review focused can be problematic for interdisciplinary reviews, where the aim is to bridge the gap between fields [18] . If you are writing a review on, for example, how epidemiological approaches are used in modelling the spread of ideas, you may be inclined to include material from both parent fields, epidemiology and the study of cultural diffusion. This may be necessary to some extent, but in this case a focused review would only deal in detail with those studies at the interface between epidemiology and the spread of ideas.
While focus is an important feature of a successful review, this requirement has to be balanced with the need to make the review relevant to a broad audience. This square may be circled by discussing the wider implications of the reviewed topic for other disciplines.
Rule 6: Be Critical and Consistent
Reviewing the literature is not stamp collecting. A good review does not just summarize the literature, but discusses it critically, identifies methodological problems, and points out research gaps [19] . After having read a review of the literature, a reader should have a rough idea of:
- the major achievements in the reviewed field,
- the main areas of debate, and
- the outstanding research questions.
It is challenging to achieve a successful review on all these fronts. A solution can be to involve a set of complementary coauthors: some people are excellent at mapping what has been achieved, some others are very good at identifying dark clouds on the horizon, and some have instead a knack at predicting where solutions are going to come from. If your journal club has exactly this sort of team, then you should definitely write a review of the literature! In addition to critical thinking, a literature review needs consistency, for example in the choice of passive vs. active voice and present vs. past tense.
Rule 7: Find a Logical Structure
Like a well-baked cake, a good review has a number of telling features: it is worth the reader's time, timely, systematic, well written, focused, and critical. It also needs a good structure. With reviews, the usual subdivision of research papers into introduction, methods, results, and discussion does not work or is rarely used. However, a general introduction of the context and, toward the end, a recapitulation of the main points covered and take-home messages make sense also in the case of reviews. For systematic reviews, there is a trend towards including information about how the literature was searched (database, keywords, time limits) [20] .
How can you organize the flow of the main body of the review so that the reader will be drawn into and guided through it? It is generally helpful to draw a conceptual scheme of the review, e.g., with mind-mapping techniques. Such diagrams can help recognize a logical way to order and link the various sections of a review [21] . This is the case not just at the writing stage, but also for readers if the diagram is included in the review as a figure. A careful selection of diagrams and figures relevant to the reviewed topic can be very helpful to structure the text too [22] .
Rule 8: Make Use of Feedback
Reviews of the literature are normally peer-reviewed in the same way as research papers, and rightly so [23] . As a rule, incorporating feedback from reviewers greatly helps improve a review draft. Having read the review with a fresh mind, reviewers may spot inaccuracies, inconsistencies, and ambiguities that had not been noticed by the writers due to rereading the typescript too many times. It is however advisable to reread the draft one more time before submission, as a last-minute correction of typos, leaps, and muddled sentences may enable the reviewers to focus on providing advice on the content rather than the form.
Feedback is vital to writing a good review, and should be sought from a variety of colleagues, so as to obtain a diversity of views on the draft. This may lead in some cases to conflicting views on the merits of the paper, and on how to improve it, but such a situation is better than the absence of feedback. A diversity of feedback perspectives on a literature review can help identify where the consensus view stands in the landscape of the current scientific understanding of an issue [24] .
Rule 9: Include Your Own Relevant Research, but Be Objective
In many cases, reviewers of the literature will have published studies relevant to the review they are writing. This could create a conflict of interest: how can reviewers report objectively on their own work [25] ? Some scientists may be overly enthusiastic about what they have published, and thus risk giving too much importance to their own findings in the review. However, bias could also occur in the other direction: some scientists may be unduly dismissive of their own achievements, so that they will tend to downplay their contribution (if any) to a field when reviewing it.
In general, a review of the literature should neither be a public relations brochure nor an exercise in competitive self-denial. If a reviewer is up to the job of producing a well-organized and methodical review, which flows well and provides a service to the readership, then it should be possible to be objective in reviewing one's own relevant findings. In reviews written by multiple authors, this may be achieved by assigning the review of the results of a coauthor to different coauthors.
Rule 10: Be Up-to-Date, but Do Not Forget Older Studies
Given the progressive acceleration in the publication of scientific papers, today's reviews of the literature need awareness not just of the overall direction and achievements of a field of inquiry, but also of the latest studies, so as not to become out-of-date before they have been published. Ideally, a literature review should not identify as a major research gap an issue that has just been addressed in a series of papers in press (the same applies, of course, to older, overlooked studies (“sleeping beauties” [26] )). This implies that literature reviewers would do well to keep an eye on electronic lists of papers in press, given that it can take months before these appear in scientific databases. Some reviews declare that they have scanned the literature up to a certain point in time, but given that peer review can be a rather lengthy process, a full search for newly appeared literature at the revision stage may be worthwhile. Assessing the contribution of papers that have just appeared is particularly challenging, because there is little perspective with which to gauge their significance and impact on further research and society.
Inevitably, new papers on the reviewed topic (including independently written literature reviews) will appear from all quarters after the review has been published, so that there may soon be the need for an updated review. But this is the nature of science [27] – [32] . I wish everybody good luck with writing a review of the literature.
Acknowledgments
Many thanks to M. Barbosa, K. Dehnen-Schmutz, T. Döring, D. Fontaneto, M. Garbelotto, O. Holdenrieder, M. Jeger, D. Lonsdale, A. MacLeod, P. Mills, M. Moslonka-Lefebvre, G. Stancanelli, P. Weisberg, and X. Xu for insights and discussions, and to P. Bourne, T. Matoni, and D. Smith for helpful comments on a previous draft.
Funding Statement
This work was funded by the French Foundation for Research on Biodiversity (FRB) through its Centre for Synthesis and Analysis of Biodiversity data (CESAB), as part of the NETSEED research project. The funders had no role in the preparation of the manuscript.
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Literature Review: Conducting & Writing
- Sample Literature Reviews
- Steps for Conducting a Lit Review
- Finding "The Literature"
- Organizing/Writing
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Sample Lit Reviews from Communication Arts
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Common Assignments: Literature Reviews
Basics of literature reviews.
A literature review is a written approach to examining published information on a particular topic or field. Authors use this review of literature to create a foundation and justification for their research or to demonstrate knowledge on the current state of a field. This review can take the form of a course assignment or a section of a longer capstone project. Read on for more information about writing a strong literature review!
Students often misinterpret the term "literature review" to mean merely a collection of source summaries, similar to annotations or article abstracts. Although summarizing is an element of a literature review, the purpose is to create a comprehensive representation of your understanding of a topic or area of research, such as what has already been done or what has been found. Then, also using these sources, you can demonstrate the need for future research, specifically, your future research.
There is usually no required format or template for a literature review. However, there are some actions to keep in mind when constructing a literature review:
- Include an introduction and conclusion . Even if the literature review will be part of a longer document, introductory and concluding paragraphs can act as bookends to your material. Provide background information for your reader, such as including references to the pioneers in the field in the beginning and offering closure in the end by discussing the implications of future research to the field.
- Avoid direct quotations . Just like in an annotated bibliography, you will want to paraphrase all of the material you present in a literature review. This assignment is a chance for you to demonstrate your knowledge on a topic, and putting ideas into your own words will ensure that you are interpreting the found material for your reader. Paraphrasing will also ensure your review of literature is in your authorial voice.
- Organize by topic or theme rather than by author. When compiling multiple sources, a tendency can be to summarize each source and then compare and contrast the sources at the end. Instead, organize your source information by your identified themes and patterns. This organization helps demonstrate your synthesis of the material and inhibits you from creating a series of book reports.
- Use headings . APA encourages the use of headings within longer pieces of text to display a shift in topic and create a visual break for the reader. Headings in a literature review can also help you as the writer organize your material by theme and note any layers, or subtopics, within the field.
- Show relationships and consider the flow of ideas. A literature review can be lengthy and dense, so you will want to make your text appealing to your reader. Transitions and comparison terms will allow you to demonstrate where authors agree or disagree on a topic and highlight your interpretation of the literature.
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Randolph, J. J. (2009). A guide to writing the dissertation literature review. Practical Assessment, Research and Evaluation , 14 (13), 1–13. https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1219&context=pare
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What is a literature review?
Conducting a literature review, organizing a literature review, writing a literature review, helpful book.
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A literature review is a compilation of the works published in a particular field of study or line of research, usually over a specific period of time, in the form of an in-depth, critical bibliographic essay or annotated list in which attention is drawn to the most significant works.
- Summarizes and analyzes previous research relevant to a topic
- Includes scholarly books and articles published in academic journals
- Can be an specific scholarly paper or a section in a research paper
The objective of a Literature Review is to find previous published scholarly works relevant to an specific topic
- Help gather ideas or information
- Keep up to date in current trends and findings
- Help develop new questions
A literature review is important because it:
- Explains the background of research on a topic
- Demonstrates why a topic is significant to a subject area
- Helps focus your own research questions or problems
- Discovers relationships between research studies/ideas
- Suggests unexplored ideas or populations
- Identifies major themes, concepts, and researchers on a topic
- Tests assumptions; may help counter preconceived ideas and remove unconscious bias
- Identifies critical gaps, points of disagreement, or potentially flawed methodology or theoretical approaches
Source: "What is a Literature Review?", Old Dominion University, https://guides.lib.odu.edu/c.php?g=966167&p=6980532
1. Choose a topic. Define your research question.
Your literature review should be guided by a central research question. It represents background and research developments related to a specific research question, interpreted, and analyzed by you in a synthesized way.
- Make sure your research question is not too broad or too narrow.
- Write down terms that are related to your question for they will be useful for searches later.
2. Decide on the scope of your review.
How many studies do you need to look at? How comprehensive should it be? How many years should it cover?
- This may depend on your assignment.
- Consider these things when planning your time for research.
3. Select the databases you will use to conduct your searches.
- By Research Guide
4. Conduct your searches and find the literature.
- Review the abstracts carefully - this will save you time!
- Many databases will have a search history tab for you to return to for later.
- Use bibliographies and references of research studies to locate others.
- Use citation management software such as Zotero to keep track of your research citations.
5. Review the literature.
Some questions to help you analyze the research:
- What was the research question you are reviewing? What are the authors trying to discover?
- Was the research funded by a source that could influence the findings?
- What were the research methodologies? Analyze the literature review, samples and variables used, results, and conclusions. Does the research seem complete? Could it have been conducted more soundly? What further questions does it raise?
- If there are conflicted studies, why do you think that is?
- How are the authors viewed in the field? Are they experts or novices? Has the study been cited?
Source: "Literature Review", University of West Florida, https://libguides.uwf.edu/c.php?g=215113&p=5139469
A literature review is not a summary of the sources but a synthesis of the sources. It is made up of the topics the sources are discussing. Each section of the review is focused on a topic, and the relevant sources are discussed within the context of that topic.
1. Select the most relevant material from the sources
- Could be material that answers the question directly
- Extract as a direct quote or paraphrase
2. Arrange that material so you can focus on it apart from the source text itself
- You are now working with fewer words/passages
- Material is all in one place
3. Group similar points, themes, or topics together and label them
- The labels describe the points, themes, or topics that are the backbone of your paper’s structure
4. Order those points, themes, or topics as you will discuss them in the paper, and turn the labels into actual assertions
- A sentence that makes a point that is directly related to your research question or thesis
This is now the outline for your literature review.
Source: "Organizing a Review of the Literature – The Basics", George Mason University Writing Center, https://writingcenter.gmu.edu/writing-resources/research-based-writing/organizing-literature-reviews-the-basics
- Literature Review Matrix Here is a template on how people tend to organize their thoughts. The matrix template is a good way to write out the key parts of each article and take notes. Downloads as an XLSX file.
The most common way that literature reviews are organized is by theme or author. Find a general pattern of structure for the review. When organizing the review, consider the following:
- the methodology
- the quality of the findings or conclusions
- major strengths and weaknesses
- any other important information
Writing Tips:
- Be selective - Select only the most important points in each source to highlight in the review. It should directly relate to the review's focus.
- Use quotes sparingly.
- Keep your own voice - Your voice (the writer's) should remain front and center. .
- Aim for one key figure/table per section to illustrate complex content, summarize a large body of relevant data, or describe the order of a process
- Legend below image/figure and above table and always refer to them in text
Source: "Composing your Literature Review", Florida A&M University, https://library.famu.edu/c.php?g=577356&p=3982811
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How to write a literature review introduction (+ examples)
![the format of a literature review the format of a literature review](https://master-academia.com/wp-content/uploads/2023/09/How-to-write-a-literature-review-introduction-examples.jpg?ezimgfmt=ng%3Awebp%2Fngcb1%2Frs%3Adevice%2Frscb1-1)
The introduction to a literature review serves as your reader’s guide through your academic work and thought process. Explore the significance of literature review introductions in review papers, academic papers, essays, theses, and dissertations. We delve into the purpose and necessity of these introductions, explore the essential components of literature review introductions, and provide step-by-step guidance on how to craft your own, along with examples.
Why you need an introduction for a literature review
In academic writing , the introduction for a literature review is an indispensable component. Effective academic writing requires proper paragraph structuring to guide your reader through your argumentation. This includes providing an introduction to your literature review.
It is imperative to remember that you should never start sharing your findings abruptly. Even if there isn’t a dedicated introduction section .
When you need an introduction for a literature review
There are three main scenarios in which you need an introduction for a literature review:
What to include in a literature review introduction
It is crucial to customize the content and depth of your literature review introduction according to the specific format of your academic work.
Academic literature review paper
The introduction of an academic literature review paper, which does not rely on empirical data, often necessitates a more extensive introduction than the brief literature review introductions typically found in empirical papers. It should encompass:
Regular literature review section in an academic article or essay
In a standard 8000-word journal article, the literature review section typically spans between 750 and 1250 words. The first few sentences or the first paragraph within this section often serve as an introduction. It should encompass:
Introduction to a literature review chapter in thesis or dissertation
Some students choose to incorporate a brief introductory section at the beginning of each chapter, including the literature review chapter. Alternatively, others opt to seamlessly integrate the introduction into the initial sentences of the literature review itself. Both approaches are acceptable, provided that you incorporate the following elements:
Examples of literature review introductions
Example 1: an effective introduction for an academic literature review paper.
To begin, let’s delve into the introduction of an academic literature review paper. We will examine the paper “How does culture influence innovation? A systematic literature review”, which was published in 2018 in the journal Management Decision.
Example 2: An effective introduction to a literature review section in an academic paper
The second example represents a typical academic paper, encompassing not only a literature review section but also empirical data, a case study, and other elements. We will closely examine the introduction to the literature review section in the paper “The environmentalism of the subalterns: a case study of environmental activism in Eastern Kurdistan/Rojhelat”, which was published in 2021 in the journal Local Environment.
Thus, the author successfully introduces the literature review, from which point onward it dives into the main concept (‘subalternity’) of the research, and reviews the literature on socio-economic justice and environmental degradation.
Examples 3-5: Effective introductions to literature review chapters
Numerous universities offer online repositories where you can access theses and dissertations from previous years, serving as valuable sources of reference. Many of these repositories, however, may require you to log in through your university account. Nevertheless, a few open-access repositories are accessible to anyone, such as the one by the University of Manchester . It’s important to note though that copyright restrictions apply to these resources, just as they would with published papers.
Master’s thesis literature review introduction
Phd thesis literature review chapter introduction.
The second example is Deep Learning on Semi-Structured Data and its Applications to Video-Game AI, Woof, W. (Author). 31 Dec 2020, a PhD thesis completed at the University of Manchester . In Chapter 2, the author offers a comprehensive introduction to the topic in four paragraphs, with the final paragraph serving as an overview of the chapter’s structure:
PhD thesis literature review introduction
The last example is the doctoral thesis Metacognitive strategies and beliefs: Child correlates and early experiences Chan, K. Y. M. (Author). 31 Dec 2020 . The author clearly conducted a systematic literature review, commencing the review section with a discussion of the methodology and approach employed in locating and analyzing the selected records.
Steps to write your own literature review introduction
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Types of Literature Review — A Guide for Researchers
Table of Contents
Researchers often face challenges when choosing the appropriate type of literature review for their study. Regardless of the type of research design and the topic of a research problem , they encounter numerous queries, including:
What is the right type of literature review my study demands?
- How do we gather the data?
- How to conduct one?
- How reliable are the review findings?
- How do we employ them in our research? And the list goes on.
If you’re also dealing with such a hefty questionnaire, this article is of help. Read through this piece of guide to get an exhaustive understanding of the different types of literature reviews and their step-by-step methodologies along with a dash of pros and cons discussed.
Heading from scratch!
What is a Literature Review?
A literature review provides a comprehensive overview of existing knowledge on a particular topic, which is quintessential to any research project. Researchers employ various literature reviews based on their research goals and methodologies. The review process involves assembling, critically evaluating, and synthesizing existing scientific publications relevant to the research question at hand. It serves multiple purposes, including identifying gaps in existing literature, providing theoretical background, and supporting the rationale for a research study.
What is the importance of a Literature review in research?
Literature review in research serves several key purposes, including:
- Background of the study: Provides proper context for the research. It helps researchers understand the historical development, theoretical perspectives, and key debates related to their research topic.
- Identification of research gaps: By reviewing existing literature, researchers can identify gaps or inconsistencies in knowledge, paving the way for new research questions and hypotheses relevant to their study.
- Theoretical framework development: Facilitates the development of theoretical frameworks by cultivating diverse perspectives and empirical findings. It helps researchers refine their conceptualizations and theoretical models.
- Methodological guidance: Offers methodological guidance by highlighting the documented research methods and techniques used in previous studies. It assists researchers in selecting appropriate research designs, data collection methods, and analytical tools.
- Quality assurance and upholding academic integrity: Conducting a thorough literature review demonstrates the rigor and scholarly integrity of the research. It ensures that researchers are aware of relevant studies and can accurately attribute ideas and findings to their original sources.
Types of Literature Review
Literature review plays a crucial role in guiding the research process , from providing the background of the study to research dissemination and contributing to the synthesis of the latest theoretical literature review findings in academia.
However, not all types of literature reviews are the same; they vary in terms of methodology, approach, and purpose. Let's have a look at the various types of literature reviews to gain a deeper understanding of their applications.
1. Narrative Literature Review
A narrative literature review, also known as a traditional literature review, involves analyzing and summarizing existing literature without adhering to a structured methodology. It typically provides a descriptive overview of key concepts, theories, and relevant findings of the research topic.
Unlike other types of literature reviews, narrative reviews reinforce a more traditional approach, emphasizing the interpretation and discussion of the research findings rather than strict adherence to methodological review criteria. It helps researchers explore diverse perspectives and insights based on the research topic and acts as preliminary work for further investigation.
![](http://writinghelp.online/777/templates/cheerup/res/banner1.gif)
Steps to Conduct a Narrative Literature Review
![the format of a literature review Steps-to-conduct-a-Narrative-Literature-Review](https://typeset.io/resources/content/images/2024/03/Steps-of-writing-a-narrative-review.png)
Source:- https://www.researchgate.net/figure/Steps-of-writing-a-narrative-review_fig1_354466408
Define the research question or topic:
The first step in conducting a narrative literature review is to clearly define the research question or topic of interest. Defining the scope and purpose of the review includes — What specific aspect of the topic do you want to explore? What are the main objectives of the research? Refine your research question based on the specific area you want to explore.
Conduct a thorough literature search
Once the research question is defined, you can conduct a comprehensive literature search. Explore and use relevant databases and search engines like SciSpace Discover to identify credible and pertinent, scholarly articles and publications.
Select relevant studies
Before choosing the right set of studies, it’s vital to determine inclusion (studies that should possess the required factors) and exclusion criteria for the literature and then carefully select papers. For example — Which studies or sources will be included based on relevance, quality, and publication date?
*Important (applies to all the reviews): Inclusion criteria are the factors a study must include (For example: Include only peer-reviewed articles published between 2022-2023, etc.). Exclusion criteria are the factors that wouldn’t be required for your search strategy (Example: exclude irrelevant papers, preprints, written in non-English, etc.)
Critically analyze the literature
Once the relevant studies are shortlisted, evaluate the methodology, findings, and limitations of each source and jot down key themes, patterns, and contradictions. You can use efficient AI tools to conduct a thorough literature review and analyze all the required information.
Synthesize and integrate the findings
Now, you can weave together the reviewed studies, underscoring significant findings such that new frameworks, contrasting viewpoints, and identifying knowledge gaps.
Discussion and conclusion
This is an important step before crafting a narrative review — summarize the main findings of the review and discuss their implications in the relevant field. For example — What are the practical implications for practitioners? What are the directions for future research for them?
Write a cohesive narrative review
Organize the review into coherent sections and structure your review logically, guiding the reader through the research landscape and offering valuable insights. Use clear and concise language to convey key points effectively.
Structure of Narrative Literature Review
A well-structured, narrative analysis or literature review typically includes the following components:
- Introduction: Provides an overview of the topic, objectives of the study, and rationale for the review.
- Background: Highlights relevant background information and establish the context for the review.
- Main Body: Indexes the literature into thematic sections or categories, discussing key findings, methodologies, and theoretical frameworks.
- Discussion: Analyze and synthesize the findings of the reviewed studies, stressing similarities, differences, and any gaps in the literature.
- Conclusion: Summarizes the main findings of the review, identifies implications for future research, and offers concluding remarks.
Pros and Cons of Narrative Literature Review
- Flexibility in methodology and doesn’t necessarily rely on structured methodologies
- Follows traditional approach and provides valuable and contextualized insights
- Suitable for exploring complex or interdisciplinary topics. For example — Climate change and human health, Cybersecurity and privacy in the digital age, and more
- Subjectivity in data selection and interpretation
- Potential for bias in the review process
- Lack of rigor compared to systematic reviews
Example of Well-Executed Narrative Literature Reviews
Paper title: Examining Moral Injury in Clinical Practice: A Narrative Literature Review
![the format of a literature review Narrative-Literature-Reviews](https://typeset.io/resources/content/images/2024/02/Narrative-Literature-Review.png)
Source: SciSpace
You can also chat with the papers using SciSpace ChatPDF to get a thorough understanding of the research papers.
While narrative reviews offer flexibility, academic integrity remains paramount. So, ensure proper citation of all sources and maintain a transparent and factual approach throughout your critical narrative review, itself.
2. Systematic Review
A systematic literature review is one of the comprehensive types of literature review that follows a structured approach to assembling, analyzing, and synthesizing existing research relevant to a particular topic or question. It involves clearly defined criteria for exploring and choosing studies, as well as rigorous methods for evaluating the quality of relevant studies.
It plays a prominent role in evidence-based practice and decision-making across various domains, including healthcare, social sciences, education, health sciences, and more. By systematically investigating available literature, researchers can identify gaps in knowledge, evaluate the strength of evidence, and report future research directions.
Steps to Conduct Systematic Reviews
![the format of a literature review Steps-to-Conduct-Systematic-Reviews](https://typeset.io/resources/content/images/2024/03/Steps-of-Systematic-Literature-Review.png)
Source:- https://www.researchgate.net/figure/Steps-of-Systematic-Literature-Review_fig1_321422320
Here are the key steps involved in conducting a systematic literature review
Formulate a clear and focused research question
Clearly define the research question or objective of the review. It helps to centralize the literature search strategy and determine inclusion criteria for relevant studies.
Develop a thorough literature search strategy
Design a comprehensive search strategy to identify relevant studies. It involves scrutinizing scientific databases and all relevant articles in journals. Plus, seek suggestions from domain experts and review reference lists of relevant review articles.
Screening and selecting studies
Employ predefined inclusion and exclusion criteria to systematically screen the identified studies. This screening process also typically involves multiple reviewers independently assessing the eligibility of each study.
Data extraction
Extract key information from selected studies using standardized forms or protocols. It includes study characteristics, methods, results, and conclusions.
Critical appraisal
Evaluate the methodological quality and potential biases of included studies. Various tools (BMC medical research methodology) and criteria can be implemented for critical evaluation depending on the study design and research quetions .
Data synthesis
Analyze and synthesize review findings from individual studies to draw encompassing conclusions or identify overarching patterns and explore heterogeneity among studies.
Interpretation and conclusion
Interpret the findings about the research question, considering the strengths and limitations of the research evidence. Draw conclusions and implications for further research.
The final step — Report writing
Craft a detailed report of the systematic literature review adhering to the established guidelines of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). This ensures transparency and reproducibility of the review process.
By following these steps, a systematic literature review aims to provide a comprehensive and unbiased summary of existing evidence, help make informed decisions, and advance knowledge in the respective domain or field.
Structure of a systematic literature review
A well-structured systematic literature review typically consists of the following sections:
- Introduction: Provides background information on the research topic, outlines the review objectives, and enunciates the scope of the study.
- Methodology: Describes the literature search strategy, selection criteria, data extraction process, and other methods used for data synthesis, extraction, or other data analysis..
- Results: Presents the review findings, including a summary of the incorporated studies and their key findings.
- Discussion: Interprets the findings in light of the review objectives, discusses their implications, and identifies limitations or promising areas for future research.
- Conclusion: Summarizes the main review findings and provides suggestions based on the evidence presented in depth meta analysis.
*Important (applies to all the reviews): Remember, the specific structure of your literature review may vary depending on your topic, research question, and intended audience. However, adhering to a clear and logical hierarchy ensures your review effectively analyses and synthesizes knowledge and contributes valuable insights for readers.
Pros and Cons of Systematic Literature Review
- Adopts rigorous and transparent methodology
- Minimizes bias and enhances the reliability of the study
- Provides evidence-based insights
- Time and resource-intensive
- High dependency on the quality of available literature (literature research strategy should be accurate)
- Potential for publication bias
Example of Well-Executed Systematic Literature Review
Paper title: Systematic Reviews: Understanding the Best Evidence For Clinical Decision-making in Health Care: Pros and Cons.
![the format of a literature review Systematic-Literature-Review](https://typeset.io/resources/content/images/2024/02/Systematic-Literature-Review.png)
Read this detailed article on how to use AI tools to conduct a systematic review for your research!
3. Scoping Literature Review
A scoping literature review is a methodological review type of literature review that adopts an iterative approach to systematically map the existing literature on a particular topic or research area. It involves identifying, selecting, and synthesizing relevant papers to provide an overview of the size and scope of available evidence. Scoping reviews are broader in scope and include a diverse range of study designs and methodologies especially focused on health services research.
The main purpose of a scoping literature review is to examine the extent, range, and nature of existing studies on a topic, thereby identifying gaps in research, inconsistencies, and areas for further investigation. Additionally, scoping reviews can help researchers identify suitable methodologies and formulate clinical recommendations. They also act as the frameworks for future systematic reviews or primary research studies.
Scoping reviews are primarily focused on —
- Emerging or evolving topics — where the research landscape is still growing or budding. Example — Whole Systems Approaches to Diet and Healthy Weight: A Scoping Review of Reviews .
- Broad and complex topics : With a vast amount of existing literature.
- Scenarios where a systematic review is not feasible: Due to limited resources or time constraints.
Steps to Conduct a Scoping Literature Review
While Scoping reviews are not as rigorous as systematic reviews, however, they still follow a structured approach. Here are the steps:
Identify the research question: Define the broad topic you want to explore.
Identify Relevant Studies: Conduct a comprehensive search of relevant literature using appropriate databases, keywords, and search strategies.
Select studies to be included in the review: Based on the inclusion and exclusion criteria, determine the appropriate studies to be included in the review.
Data extraction and charting : Extract relevant information from selected studies, such as year, author, main results, study characteristics, key findings, and methodological approaches. However, it varies depending on the research question.
Collate, summarize, and report the results: Analyze and summarize the extracted data to identify key themes and trends. Then, present the findings of the scoping review in a clear and structured manner, following established guidelines and frameworks .
Structure of a Scoping Literature Review
A scoping literature review typically follows a structured format similar to a systematic review. It includes the following sections:
- Introduction: Introduce the research topic and objectives of the review, providing the historical context, and rationale for the study.
- Methods : Describe the methods used to conduct the review, including search strategies, study selection criteria, and data extraction procedures.
- Results: Present the findings of the review, including key themes, concepts, and patterns identified in the literature review.
- Discussion: Examine the implications of the findings, including strengths, limitations, and areas for further examination.
- Conclusion: Recapitulate the main findings of the review and their implications for future research, policy, or practice.
Pros and Cons of Scoping Literature Review
- Provides a comprehensive overview of existing literature
- Helps to identify gaps and areas for further research
- Suitable for exploring broad or complex research questions
- Doesn’t provide the depth of analysis offered by systematic reviews
- Subject to researcher bias in study selection and data extraction
- Requires careful consideration of literature search strategies and inclusion criteria to ensure comprehensiveness and validity.
In short, a scoping review helps map the literature on developing or emerging topics and identifying gaps. It might be considered as a step before conducting another type of review, such as a systematic review. Basically, acts as a precursor for other literature reviews.
Example of a Well-Executed Scoping Literature Review
Paper title: Health Chatbots in Africa Literature: A Scoping Review
![the format of a literature review Scoping-Literature-Review](https://typeset.io/resources/content/images/2024/02/Scoping-Literature-Review.png)
Check out the key differences between Systematic and Scoping reviews — Evaluating literature review: systematic vs. scoping reviews
4. Integrative Literature Review
Integrative Literature Review (ILR) is a type of literature review that proposes a distinctive way to analyze and synthesize existing literature on a specific topic, providing a thorough understanding of research and identifying potential gaps for future research.
Unlike a systematic review, which emphasizes quantitative studies and follows strict inclusion criteria, an ILR embraces a more pliable approach. It works beyond simply summarizing findings — it critically analyzes, integrates, and interprets research from various methodologies (qualitative, quantitative, mixed methods) to provide a deeper understanding of the research landscape. ILRs provide a holistic and systematic overview of existing research, integrating findings from various methodologies. ILRs are ideal for exploring intricate research issues, examining manifold perspectives, and developing new research questions.
Steps to Conduct an Integrative Literature Review
- Identify the research question: Clearly define the research question or topic of interest as formulating a clear and focused research question is critical to leading the entire review process.
- Literature search strategy: Employ systematic search techniques to locate relevant literature across various databases and sources.
- Evaluate the quality of the included studies : Critically assess the methodology, rigor, and validity of each study by applying inclusion and exclusion criteria to filter and select studies aligned with the research objectives.
- Data Extraction: Extract relevant data from selected studies using a structured approach.
- Synthesize the findings : Thoroughly analyze the selected literature, identify key themes, and synthesize findings to derive noteworthy insights.
- Critical appraisal: Critically evaluate the quality and validity of qualitative research and included studies by using BMC medical research methodology.
- Interpret and present your findings: Discuss the purpose and implications of your analysis, spotlighting key insights and limitations. Organize and present the findings coherently and systematically.
Structure of an Integrative Literature Review
- Introduction : Provide an overview of the research topic and the purpose of the integrative review.
- Methods: Describe the opted literature search strategy, selection criteria, and data extraction process.
- Results: Present the synthesized findings, including key themes, patterns, and contradictions.
- Discussion: Interpret the findings about the research question, emphasizing implications for theory, practice, and prospective research.
- Conclusion: Summarize the main findings, limitations, and contributions of the integrative review.
Pros and Cons of Integrative Literature Review
- Informs evidence-based practice and policy to the relevant stakeholders of the research.
- Contributes to theory development and methodological advancement, especially in the healthcare arena.
- Integrates diverse perspectives and findings
- Time-consuming process due to the extensive literature search and synthesis
- Requires advanced analytical and critical thinking skills
- Potential for bias in study selection and interpretation
- The quality of included studies may vary, affecting the validity of the review
Example of Integrative Literature Reviews
Paper Title: An Integrative Literature Review: The Dual Impact of Technological Tools on Health and Technostress Among Older Workers
![the format of a literature review Integrative-Literature-Review](https://typeset.io/resources/content/images/2024/02/Integrative-Literature-Review.png)
5. Rapid Literature Review
A Rapid Literature Review (RLR) is the fastest type of literature review which makes use of a streamlined approach for synthesizing literature summaries, offering a quicker and more focused alternative to traditional systematic reviews. Despite employing identical research methods, it often simplifies or omits specific steps to expedite the process. It allows researchers to gain valuable insights into current research trends and identify key findings within a shorter timeframe, often ranging from a few days to a few weeks — unlike traditional literature reviews, which may take months or even years to complete.
When to Consider a Rapid Literature Review?
- When time impediments demand a swift summary of existing research
- For emerging topics where the latest literature requires quick evaluation
- To report pilot studies or preliminary research before embarking on a comprehensive systematic review
Steps to Conduct a Rapid Literature Review
- Define the research question or topic of interest. A well-defined question guides the search process and helps researchers focus on relevant studies.
- Determine key databases and sources of relevant literature to ensure comprehensive coverage.
- Develop literature search strategies using appropriate keywords and filters to fetch a pool of potential scientific articles.
- Screen search results based on predefined inclusion and exclusion criteria.
- Extract and summarize relevant information from the above-preferred studies.
- Synthesize findings to identify key themes, patterns, or gaps in the literature.
- Prepare a concise report or a summary of the RLR findings.
Structure of a Rapid Literature Review
An effective structure of an RLR typically includes the following sections:
- Introduction: Briefly introduce the research topic and objectives of the RLR.
- Methodology: Describe the search strategy, inclusion and exclusion criteria, and data extraction process.
- Results: Present a summary of the findings, including key themes or patterns identified.
- Discussion: Interpret the findings, discuss implications, and highlight any limitations or areas for further research
- Conclusion: Summarize the key findings and their implications for practice or future research
Pros and Cons of Rapid Literature Review
- RLRs can be completed quickly, authorizing timely decision-making
- RLRs are a cost-effective approach since they require fewer resources compared to traditional literature reviews
- Offers great accessibility as RLRs provide prompt access to synthesized evidence for stakeholders
- RLRs are flexible as they can be easily adapted for various research contexts and objectives
- RLR reports are limited and restricted, not as in-depth as systematic reviews, and do not provide comprehensive coverage of the literature compared to traditional reviews.
- Susceptible to bias because of the expedited nature of RLRs. It would increase the chance of overlooking relevant studies or biases in the selection process.
- Due to time constraints, RLR findings might not be robust enough as compared to systematic reviews.
Example of a Well-Executed Rapid Literature Review
Paper Title: What Is the Impact of ChatGPT on Education? A Rapid Review of the Literature
![the format of a literature review Rapid-Literature-Review](https://typeset.io/resources/content/images/2024/02/Rapid-Literature-Review.png)
A Summary of Literature Review Types
Literature Review Type | Narrative | Systematic | Integrative | Rapid | Scoping |
Approach | The traditional approach lacks a structured methodology | Systematic search, including structured methodology | Combines diverse methodologies for a comprehensive understanding | Quick review within time constraints | Preliminary study of existing literature |
How Exhaustive is the process? | May or may not be comprehensive | Exhaustive and comprehensive search | A comprehensive search for integration | Time-limited search | Determined by time or scope constraints |
Data Synthesis | Narrative | Narrative with tabular accompaniment | Integration of various sources or methodologies | Narrative and tabular | Narrative and tabular |
Purpose | Provides description of meta analysis and conceptualization of the review | Comprehensive evidence synthesis | Holistic understanding | Quick policy or practice guidelines review | Preliminary literature review |
Key characteristics | Storytelling, chronological presentation | Rigorous, traditional and systematic techniques approach | Diverse source or method integration | Time-constrained, systematic approach | Identifies literature size and scope |
Example Use Case | Historical exploration | Effectiveness evaluation | Quantitative, qualitative, and mixed combination | Policy summary | Research literature overview |
Tools and Resources for Conducting Different Types of Literature Reviews
Online scientific databases.
Platforms such as SciSpace , PubMed , Scopus , Elsevier , and Web of Science provide access to a vast array of scholarly literature, facilitating the search and data retrieval process.
Reference management software
Tools like SciSpace Citation Generator , EndNote, Zotero , and Mendeley assist researchers in organizing, annotating, and citing relevant literature, streamlining the review process altogether.
Automate Literature Review with AI tools
Automate the literature review process by using tools like SciSpace literature review which helps you compare and contrast multiple papers all on one screen in an easy-to-read matrix format. You can effortlessly analyze and interpret the review findings tailored to your study. It also supports the review in 75+ languages, making it more manageable even for non-English speakers.
![the format of a literature review the format of a literature review](https://typeset.io/resources/content/images/2024/02/SciSpace-Literature-Review.png)
Goes without saying — literature review plays a pivotal role in academic research to identify the current trends and provide insights to pave the way for future research endeavors. Different types of literature review has their own strengths and limitations, making them suitable for different research designs and contexts. Whether conducting a narrative review, systematic review, scoping review, integrative review, or rapid literature review, researchers must cautiously consider the objectives, resources, and the nature of the research topic.
If you’re currently working on a literature review and still adopting a manual and traditional approach, switch to the automated AI literature review workspace and transform your traditional literature review into a rapid one by extracting all the latest and relevant data for your research!
There you go!
![the format of a literature review the format of a literature review](https://typeset.io/icon.png)
Frequently Asked Questions
Narrative reviews give a general overview of a topic based on the author's knowledge. They may lack clear criteria and can be biased. On the other hand, systematic reviews aim to answer specific research questions by following strict methods. They're thorough but time-consuming.
A systematic review collects and analyzes existing research to provide an overview of a topic, while a meta-analysis statistically combines data from multiple studies to draw conclusions about the overall effect of an intervention or relationship between variables.
A systematic review thoroughly analyzes existing research on a specific topic using strict methods. In contrast, a scoping review offers a broader overview of the literature without evaluating individual studies in depth.
A systematic review thoroughly examines existing research using a rigorous process, while a rapid review provides a quicker summary of evidence, often by simplifying some of the systematic review steps to meet shorter timelines.
A systematic review carefully examines many studies on a single topic using specific guidelines. Conversely, an integrative review blends various types of research to provide a more comprehensive understanding of the topic.
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Subject Guides
Literature Review and Evidence Synthesis
- A guide to review types This link opens in a new window
- Reviews as Assignments
- Annotated Bibliography
What is a Narrative Literature Review
Narrative review process.
- Integrative Review
- Scoping Review This link opens in a new window
- Systematic Review This link opens in a new window
- Other Review Types
- Subject Librarian Assistance with Reviews
- Grey Literature This link opens in a new window
- Tools for Reviews
Subject Librarians
Find your Subject Librarian Here
![the format of a literature review](https://libapps.s3.amazonaws.com/accounts/362015/images/Logomark-The-Binghamton-University-B-for-University-use-Communications-and-Marketing-Binghamton-University.png)
A narrative literature review is an integrated analysis of the existing literature used to summarize a body of literature, draw conclusions about a topic, and identify research gaps. By understanding the current state of the literature, you can show how new research fits into the larger research landscape.
A narrative literature review is NOT:
- Just a summary of sources
- A review of everything written on a particular topic
- A research paper arguing for a specific viewpoint - a lit review should avoid bias and highlight areas of disagreements
- A systematic review
Purposes of a narrative literature review:
- Explain the background of research on a topic
- Demonstrate the importance of a topic
- Suggest new areas of research
- Identify major themes, concepts, and researchers in a topic
- Identify critical gaps, points of disagreement, or flawed approaches for a research topic
1. Choose a topic & create a research question
- Use a narrow research question for more focused search results
- Use a question framework such as PICO to develop your research question
- Breakdown your research question into searchable concepts and keywords
- Research skills tutorials : How to choose a topic
- Ask a librarian for assistance
2. Select the sources for searching & develop a search strategy
- Identify databases to search for articles relevant to your topic
- Ask a librarian for recommended databases
- Develop a comprehensive search strategy using keywords, controlled vocabularies and Boolean operators
- Research skills tutorials: How to develop a search strategy
3. Conduct the search
- Use a consistent search strategy between databases
- Document the strategies employed to keep track of which are more successful
- Use a citation manager to organize your search results
- Ask a librarian for help or refer to the Research skills tutorials
4. Review the references
- Review the search results for relevant articles that answer your research question
- Review the bibliography of all relevant articles for additional sources
- Consider developing subfolders in the citation manager to organize sources by topic
- Use interlibrary loan for any articles without full text access
5. Summarize findings
- Synthesize the findings from the articles into a final paper
- The final paper should cover the themes identified in the research, explain any conflicts or disagreements, identify research gaps and potential future research areas, explain how this narrative review fits within the existing research and answer the research question .
For additional information :
Hempel. (2020). Conducting your literature review. American Psychological Association .
- Buchholz, & Dickins, K. A. (2023). Literature review and synthesis : a guide for nurses and other healthcare professionals . Springer Publishing Company, LLC.
- Coughlan, Michael, and Patricia Cronin. Doing a Literature Review in Nursing, Health and Social Care . 2nd edition., SAGE, 2017.
- Nundy, S., Kakar, A., Bhutta, Z.A. (2022). How to Do a Review of the Literature? . In: How to Practice Academic Medicine and Publish from Developing Countries?. Springer, Singapore. https://doi.org/10.1007/978-981-16-5248-6_18
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How to Write a Research Proposal: A Complete Guide
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A research proposal is a piece of writing that basically serves as your plan for a research project. It spells out what you’ll study, how you’ll go about it, and why it matters. Think of it as your pitch to show professors or funding bodies that your project is worth their attention and support.
This task is standard for grad students, especially those in research-intensive fields. It’s your chance to showcase your ability to think critically, design a solid study, and articulate why your research could make a difference.
In this article, we'll talk about how to craft a good research proposal, covering everything from the standard format of a research proposal to the specific details you'll need to include.
Feeling overwhelmed by the idea of putting one together? That’s where DoMyEssay comes in handy. Whether you need a little push or more extensive guidance, we’ll help you nail your proposal and move your project forward.
Research Proposal Format
When you're putting together a research proposal, think of it as setting up a roadmap for your project. You want it to be clear and easy to follow so everyone knows what you’re planning to do, how you’re going to do it, and why it matters.
Whether you’re following APA or Chicago style, the key is to keep your formatting clean so that it’s easy for committees or funding bodies to read through and understand.
Here’s a breakdown of each section, with a special focus on formatting a research proposal:
- Title Page : This is your first impression. Make sure it includes the title of your research proposal, your name, and your affiliations. Your title should grab attention and make it clear what your research is about.
- Abstract : This is your elevator pitch. In about 250 words, you need to sum up what you plan to research, how you plan to do it, and what impact you think it will have.
- Introduction : Here’s where you draw them in. Lay out your research question or problem, highlight its importance, and clearly outline what you aim to achieve with your study.
- Literature Review : Show that you’ve done your homework. In this section, demonstrate that you know the field and how your research fits into it. It’s your chance to connect your ideas to what’s already out there and show off a bit about what makes your approach unique or necessary.
- Methodology : Dive into the details of how you’ll get your research done. Explain your methods for gathering data and how you’ll analyze it. This is where you reassure them that your project is doable and you’ve thought through all the steps.
- Timeline : Keep it realistic. Provide an estimated schedule for your research, breaking down the process into manageable stages and assigning a timeline for each phase.
- Budget : If you need funding, lay out a budget that spells out what you need money for. Be clear and precise so there’s no guesswork involved about what you’re asking for.
- References/Bibliography : List out all the works you cited in your proposal. Stick to one citation style to keep things consistent.
Get Your Research Proposal Right
Let our experts guide you through crafting a research proposal that stands out. From idea to submission, we've got you covered.
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Research Proposal Structure
When you're writing a research proposal, you're laying out your questions and explaining the path you're planning to take to tackle them. Here’s how to structure your proposal so that it speaks to why your research matters and should get some attention.
Introduction
An introduction is where you grab attention and make everyone see why what you're doing matters. Here, you’ll pose the big question of your research proposal topic and show off the potential of your research right from the get-go:
- Grab attention : Start with something that makes the reader sit up — maybe a surprising fact, a challenging question, or a brief anecdote that highlights the urgency of your topic.
- Set the scene : What’s the broader context of your work? Give a snapshot of the landscape and zoom in on where your research fits. This helps readers see the big picture and the niche you’re filling.
- Lay out your plan : Briefly mention the main goals or questions of your research. If you have a hypothesis, state it clearly here.
- Make it matter : Show why your research needs to happen now. What gaps are you filling? What changes could your findings inspire? Make sure the reader understands the impact and significance of your work.
Literature Review
In your research proposal, the literature review does more than just recap what’s already out there. It's where you get to show off how your research connects with the big ideas and ongoing debates in your field. Here’s how to make this section work hard for you:
- Connect the dots : First up, highlight how your study fits into the current landscape by listing what others have done and positioning your research within it. You want to make it clear that you’re not just following the crowd but actually engaging with and contributing to real conversations.
- Critique what’s out there : Explore what others have done well and where they’ve fallen short. Pointing out the gaps or where others might have missed the mark helps set up why your research is needed and how it offers something different.
- Build on what’s known : Explain how your research will use, challenge, or advance the existing knowledge. Are you closing a key gap? Applying old ideas in new ways? Make it clear how your work is going to add something new or push existing boundaries.
Aims and Objectives
Let's talk about the aims and objectives of your research. This is where you set out what you want to achieve and how you plan to get there:
- Main Goal : Start by stating your primary aim. What big question are you trying to answer, or what hypothesis are you testing? This is your research's main driving force.
- Detailed Objectives : Now, break down your main goal into smaller, actionable objectives. These should be clear and specific steps that will help you reach your overall aim. Think of these as the building blocks of your research, each one designed to contribute to the larger goal.
Research Design and Method
This part of your proposal outlines the practical steps you’ll take to answer your research questions:
- Type of Research : First off, what kind of research are you conducting? Will it be qualitative or quantitative research , or perhaps a mix of both? Clearly define whether you'll be gathering numerical data for statistical analysis or exploring patterns and theories in depth.
- Research Approach : Specify whether your approach is experimental, correlational, or descriptive. Each of these frameworks has its own way of uncovering insights, so choose the one that best fits the questions you’re trying to answer.
- Data Collection : Discuss the specifics of your data. If you’re in the social sciences, for instance, describe who or what you’ll be studying. How will you select your subjects or sources? What criteria will you use, and how will you gather your data? Be clear about the methods you’ll use, whether that’s surveys, interviews, observations, or experiments.
- Tools and Techniques : Detail the tools and techniques you'll use to collect your data. Explain why these tools are the best fit for your research goals.
- Timeline and Budget : Sketch out a timeline for your research activities. How long will each phase take? This helps everyone see that your project is organized and feasible.
- Potential Challenges : What might go wrong? Think about potential obstacles and how you plan to handle them. This shows you’re thinking ahead and preparing for all possibilities.
Ethical Considerations
When you're conducting research, especially involving people, you've got to think about ethics. This is all about ensuring everyone's rights are respected throughout your study. Here’s a quick rundown:
- Participant Rights : You need to protect your participants' rights to privacy, autonomy, and confidentiality. This means they should know what the study involves and agree to participate willingly—this is what we call informed consent.
- Informed Consent : You've got to be clear with participants about what they’re signing up for, what you’ll do with the data, and how you'll keep it confidential. Plus, they need the freedom to drop out any time they want.
- Ethical Approval : Before you even start collecting data, your research plan needs a green light from an ethics committee. This group checks that you’re set up to keep your participants safe and treated fairly.
You need to carefully calculate the costs for every aspect of your project. Make sure to include a bit extra for those just-in-case scenarios like unexpected delays or price hikes. Every dollar should have a clear purpose, so justify each part of your budget to ensure it’s all above board. This approach keeps your project on track financially and avoids any surprises down the line.
The appendices in your research proposal are where you stash all the extra documents that back up your main points. Depending on your project, this could include things like consent forms, questionnaires, measurement tools, or even a simple explanation of your study for participants.
Just like any academic paper, your research proposal needs to include citations for all the sources you’ve referenced. Whether you call it a references list or a bibliography, the idea is the same — crediting the work that has informed your research. Make sure every source you’ve cited is listed properly, keeping everything consistent and easy to follow.
Research Proposal Got You Stuck?
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How to Write a Research Proposal?
Whether you're new to this process or looking to refine your skills, here are some practical tips to help you create a strong and compelling proposal.
Tip | What to Do |
---|---|
Stay on Target 🎯 | Stick to the main points and avoid getting sidetracked. A focused proposal is easier to follow and more compelling. |
Use Visuals 🖼️ | Consider adding charts, graphs, or tables if they help explain your ideas better. Visuals can make complex info clearer. |
Embrace Feedback 🔄 | Be open to revising your proposal based on feedback. The best proposals often go through several drafts. |
Prepare Your Pitch 🎤 | If you’re going to present your proposal, practice explaining it clearly and confidently. Being able to pitch it well can make a big difference. |
Anticipate Questions ❓ | Think about the questions or challenges reviewers might have and prepare clear responses. |
Think Bigger 🌍 | Consider how your research could impact your field or even broader society. This can make your proposal more persuasive. |
Use Strong Sources 📚 | Always use credible and up-to-date sources. This strengthens your arguments and builds trust with your readers. |
Keep It Professional ✏️ | While clarity is key, make sure your tone stays professional throughout your proposal. |
Highlight What’s New 💡 | Emphasize what’s innovative or unique about your research. This can be a big selling point for your proposal. |
Research Proposal Template
Here’s a simple and handy research proposal example in PDF format to help you get started and keep your work organized:
Writing a research proposal can be straightforward if you break it down into manageable steps:
- Pick a strong research proposal topic that interests you and has enough material to explore.
- Craft an engaging introduction that clearly states your research question and objectives.
- Do a thorough literature review to see how your work fits into the existing research landscape.
- Plan out your research design and method , deciding whether you’ll use qualitative or quantitative research.
- Consider the ethical aspects to ensure your research is conducted responsibly.
- Set up a budget and gather any necessary appendices to support your proposal.
- Make sure all your sources are cited properly to add credibility to your work.
If you need some extra support, DoMyEssay is ready to help with any type of paper, including crafting a strong research proposal.
What Is a Research Proposal?
How long should a research proposal be, how do you start writing a research proposal.
Examples of Research proposals | York St John University. (n.d.). York St John University. https://www.yorksj.ac.uk/study/postgraduate/research-degrees/apply/examples-of-research-proposals/
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What Is A Literature Review?
A plain-language explainer (with examples).
By: Derek Jansen (MBA) & Kerryn Warren (PhD) | June 2020 (Updated May 2023)
If you’re faced with writing a dissertation or thesis, chances are you’ve encountered the term “literature review” . If you’re on this page, you’re probably not 100% what the literature review is all about. The good news is that you’ve come to the right place.
Literature Review 101
- What (exactly) is a literature review
- What’s the purpose of the literature review chapter
- How to find high-quality resources
- How to structure your literature review chapter
- Example of an actual literature review
What is a literature review?
The word “literature review” can refer to two related things that are part of the broader literature review process. The first is the task of reviewing the literature – i.e. sourcing and reading through the existing research relating to your research topic. The second is the actual chapter that you write up in your dissertation, thesis or research project. Let’s look at each of them:
Reviewing the literature
The first step of any literature review is to hunt down and read through the existing research that’s relevant to your research topic. To do this, you’ll use a combination of tools (we’ll discuss some of these later) to find journal articles, books, ebooks, research reports, dissertations, theses and any other credible sources of information that relate to your topic. You’ll then summarise and catalogue these for easy reference when you write up your literature review chapter.
The literature review chapter
The second step of the literature review is to write the actual literature review chapter (this is usually the second chapter in a typical dissertation or thesis structure ). At the simplest level, the literature review chapter is an overview of the key literature that’s relevant to your research topic. This chapter should provide a smooth-flowing discussion of what research has already been done, what is known, what is unknown and what is contested in relation to your research topic. So, you can think of it as an integrated review of the state of knowledge around your research topic.
![what-is-lit-review Starting point for the literature review](https://gradcoach.com/wp-content/uploads/what-is-lit-review.png)
What’s the purpose of a literature review?
The literature review chapter has a few important functions within your dissertation, thesis or research project. Let’s take a look at these:
Purpose #1 – Demonstrate your topic knowledge
The first function of the literature review chapter is, quite simply, to show the reader (or marker) that you know what you’re talking about . In other words, a good literature review chapter demonstrates that you’ve read the relevant existing research and understand what’s going on – who’s said what, what’s agreed upon, disagreed upon and so on. This needs to be more than just a summary of who said what – it needs to integrate the existing research to show how it all fits together and what’s missing (which leads us to purpose #2, next).
Purpose #2 – Reveal the research gap that you’ll fill
The second function of the literature review chapter is to show what’s currently missing from the existing research, to lay the foundation for your own research topic. In other words, your literature review chapter needs to show that there are currently “missing pieces” in terms of the bigger puzzle, and that your study will fill one of those research gaps . By doing this, you are showing that your research topic is original and will help contribute to the body of knowledge. In other words, the literature review helps justify your research topic.
Purpose #3 – Lay the foundation for your conceptual framework
The third function of the literature review is to form the basis for a conceptual framework . Not every research topic will necessarily have a conceptual framework, but if your topic does require one, it needs to be rooted in your literature review.
For example, let’s say your research aims to identify the drivers of a certain outcome – the factors which contribute to burnout in office workers. In this case, you’d likely develop a conceptual framework which details the potential factors (e.g. long hours, excessive stress, etc), as well as the outcome (burnout). Those factors would need to emerge from the literature review chapter – they can’t just come from your gut!
So, in this case, the literature review chapter would uncover each of the potential factors (based on previous studies about burnout), which would then be modelled into a framework.
Purpose #4 – To inform your methodology
The fourth function of the literature review is to inform the choice of methodology for your own research. As we’ve discussed on the Grad Coach blog , your choice of methodology will be heavily influenced by your research aims, objectives and questions . Given that you’ll be reviewing studies covering a topic close to yours, it makes sense that you could learn a lot from their (well-considered) methodologies.
So, when you’re reviewing the literature, you’ll need to pay close attention to the research design , methodology and methods used in similar studies, and use these to inform your methodology. Quite often, you’ll be able to “borrow” from previous studies . This is especially true for quantitative studies , as you can use previously tried and tested measures and scales.
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How do I find articles for my literature review?
Finding quality journal articles is essential to crafting a rock-solid literature review. As you probably already know, not all research is created equally, and so you need to make sure that your literature review is built on credible research .
We could write an entire post on how to find quality literature (actually, we have ), but a good starting point is Google Scholar . Google Scholar is essentially the academic equivalent of Google, using Google’s powerful search capabilities to find relevant journal articles and reports. It certainly doesn’t cover every possible resource, but it’s a very useful way to get started on your literature review journey, as it will very quickly give you a good indication of what the most popular pieces of research are in your field.
One downside of Google Scholar is that it’s merely a search engine – that is, it lists the articles, but oftentimes it doesn’t host the articles . So you’ll often hit a paywall when clicking through to journal websites.
Thankfully, your university should provide you with access to their library, so you can find the article titles using Google Scholar and then search for them by name in your university’s online library. Your university may also provide you with access to ResearchGate , which is another great source for existing research.
Remember, the correct search keywords will be super important to get the right information from the start. So, pay close attention to the keywords used in the journal articles you read and use those keywords to search for more articles. If you can’t find a spoon in the kitchen, you haven’t looked in the right drawer.
Need a helping hand?
How should I structure my literature review?
Unfortunately, there’s no generic universal answer for this one. The structure of your literature review will depend largely on your topic area and your research aims and objectives.
You could potentially structure your literature review chapter according to theme, group, variables , chronologically or per concepts in your field of research. We explain the main approaches to structuring your literature review here . You can also download a copy of our free literature review template to help you establish an initial structure.
In general, it’s also a good idea to start wide (i.e. the big-picture-level) and then narrow down, ending your literature review close to your research questions . However, there’s no universal one “right way” to structure your literature review. The most important thing is not to discuss your sources one after the other like a list – as we touched on earlier, your literature review needs to synthesise the research , not summarise it .
Ultimately, you need to craft your literature review so that it conveys the most important information effectively – it needs to tell a logical story in a digestible way. It’s no use starting off with highly technical terms and then only explaining what these terms mean later. Always assume your reader is not a subject matter expert and hold their hand through a journe y of the literature while keeping the functions of the literature review chapter (which we discussed earlier) front of mind.
![Blog post images (3) A good literature review should synthesise the existing research in relation to the research aims, not simply summarise it.](https://gradcoach.com/wp-content/uploads/Blog-post-images-3.png)
Example of a literature review
In the video below, we walk you through a high-quality literature review from a dissertation that earned full distinction. This will give you a clearer view of what a strong literature review looks like in practice and hopefully provide some inspiration for your own.
Wrapping Up
In this post, we’ve (hopefully) answered the question, “ what is a literature review? “. We’ve also considered the purpose and functions of the literature review, as well as how to find literature and how to structure the literature review chapter. If you’re keen to learn more, check out the literature review section of the Grad Coach blog , as well as our detailed video post covering how to write a literature review .
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Psst… there’s more!
This post is an extract from our bestselling short course, Literature Review Bootcamp . If you want to work smart, you don't want to miss this .
16 Comments
Thanks for this review. It narrates what’s not been taught as tutors are always in a early to finish their classes.
Thanks for the kind words, Becky. Good luck with your literature review 🙂
This website is amazing, it really helps break everything down. Thank you, I would have been lost without it.
This is review is amazing. I benefited from it a lot and hope others visiting this website will benefit too.
Timothy T. Chol [email protected]
Thank you very much for the guiding in literature review I learn and benefited a lot this make my journey smooth I’ll recommend this site to my friends
This was so useful. Thank you so much.
Hi, Concept was explained nicely by both of you. Thanks a lot for sharing it. It will surely help research scholars to start their Research Journey.
The review is really helpful to me especially during this period of covid-19 pandemic when most universities in my country only offer online classes. Great stuff
Great Brief Explanation, thanks
So helpful to me as a student
GradCoach is a fantastic site with brilliant and modern minds behind it.. I spent weeks decoding the substantial academic Jargon and grounding my initial steps on the research process, which could be shortened to a couple of days through the Gradcoach. Thanks again!
This is an amazing talk. I paved way for myself as a researcher. Thank you GradCoach!
Well-presented overview of the literature!
This was brilliant. So clear. Thank you
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- Study Protocol
- Open access
- Published: 26 August 2024
Learning effect of online versus onsite education in health and medical scholarship – protocol for a cluster randomized trial
- Rie Raffing 1 ,
- Lars Konge 2 &
- Hanne Tønnesen 1
BMC Medical Education volume 24 , Article number: 927 ( 2024 ) Cite this article
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Metrics details
The disruption of health and medical education by the COVID-19 pandemic made educators question the effect of online setting on students’ learning, motivation, self-efficacy and preference. In light of the health care staff shortage online scalable education seemed relevant. Reviews on the effect of online medical education called for high quality RCTs, which are increasingly relevant with rapid technological development and widespread adaption of online learning in universities. The objective of this trial is to compare standardized and feasible outcomes of an online and an onsite setting of a research course regarding the efficacy for PhD students within health and medical sciences: Primarily on learning of research methodology and secondly on preference, motivation, self-efficacy on short term and academic achievements on long term. Based on the authors experience with conducting courses during the pandemic, the hypothesis is that student preferred onsite setting is different to online setting.
Cluster randomized trial with two parallel groups. Two PhD research training courses at the University of Copenhagen are randomized to online (Zoom) or onsite (The Parker Institute, Denmark) setting. Enrolled students are invited to participate in the study. Primary outcome is short term learning. Secondary outcomes are short term preference, motivation, self-efficacy, and long-term academic achievements. Standardized, reproducible and feasible outcomes will be measured by tailor made multiple choice questionnaires, evaluation survey, frequently used Intrinsic Motivation Inventory, Single Item Self-Efficacy Question, and Google Scholar publication data. Sample size is calculated to 20 clusters and courses are randomized by a computer random number generator. Statistical analyses will be performed blinded by an external statistical expert.
Primary outcome and secondary significant outcomes will be compared and contrasted with relevant literature. Limitations include geographical setting; bias include lack of blinding and strengths are robust assessment methods in a well-established conceptual framework. Generalizability to PhD education in other disciplines is high. Results of this study will both have implications for students and educators involved in research training courses in health and medical education and for the patients who ultimately benefits from this training.
Trial registration
Retrospectively registered at ClinicalTrials.gov: NCT05736627. SPIRIT guidelines are followed.
Peer Review reports
Medical education was utterly disrupted for two years by the COVID-19 pandemic. In the midst of rearranging courses and adapting to online platforms we, with lecturers and course managers around the globe, wondered what the conversion to online setting did to students’ learning, motivation and self-efficacy [ 1 , 2 , 3 ]. What the long-term consequences would be [ 4 ] and if scalable online medical education should play a greater role in the future [ 5 ] seemed relevant and appealing questions in a time when health care professionals are in demand. Our experience of performing research training during the pandemic was that although PhD students were grateful for courses being available, they found it difficult to concentrate related to the long screen hours. We sensed that most students preferred an onsite setting and perceived online courses a temporary and inferior necessity. The question is if this impacted their learning?
Since the common use of the internet in medical education, systematic reviews have sought to answer if there is a difference in learning effect when taught online compared to onsite. Although authors conclude that online learning may be equivalent to onsite in effect, they agree that studies are heterogeneous and small [ 6 , 7 ], with low quality of the evidence [ 8 , 9 ]. They therefore call for more robust and adequately powered high-quality RCTs to confirm their findings and suggest that students’ preferences in online learning should be investigated [ 7 , 8 , 9 ].
This uncovers two knowledge gaps: I) High-quality RCTs on online versus onsite learning in health and medical education and II) Studies on students’ preferences in online learning.
Recently solid RCTs have been performed on the topic of web-based theoretical learning of research methods among health professionals [ 10 , 11 ]. However, these studies are on asynchronous courses among medical or master students with short term outcomes.
This uncovers three additional knowledge gaps: III) Studies on synchronous online learning IV) among PhD students of health and medical education V) with long term measurement of outcomes.
The rapid technological development including artificial intelligence (AI) and widespread adaption as well as application of online learning forced by the pandemic, has made online learning well-established. It represents high resolution live synchronic settings which is available on a variety of platforms with integrated AI and options for interaction with and among students, chat and break out rooms, and exterior digital tools for teachers [ 12 , 13 , 14 ]. Thus, investigating online learning today may be quite different than before the pandemic. On one hand, it could seem plausible that this technological development would make a difference in favour of online learning which could not be found in previous reviews of the evidence. On the other hand, the personal face-to-face interaction during onsite learning may still be more beneficial for the learning process and combined with our experience of students finding it difficult to concentrate when online during the pandemic we hypothesize that outcomes of the onsite setting are different from the online setting.
To support a robust study, we design it as a cluster randomized trial. Moreover, we use the well-established and widely used Kirkpatrick’s conceptual framework for evaluating learning as a lens to assess our outcomes [ 15 ]. Thus, to fill the above-mentioned knowledge gaps, the objective of this trial is to compare a synchronous online and an in-person onsite setting of a research course regarding the efficacy for PhD students within the health and medical sciences:
Primarily on theoretical learning of research methodology and
Secondly on
◦ Preference, motivation, self-efficacy on short term
◦ Academic achievements on long term
Trial design
This study protocol covers synchronous online and in-person onsite setting of research courses testing the efficacy for PhD students. It is a two parallel arms cluster randomized trial (Fig. 1 ).
![the format of a literature review figure 1](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs12909-024-05915-z/MediaObjects/12909_2024_5915_Fig1_HTML.png)
Consort flow diagram
The study measures baseline and post intervention. Baseline variables and knowledge scores are obtained at the first day of the course, post intervention measurement is obtained the last day of the course (short term) and monthly for 24 months (long term).
Randomization is stratified giving 1:1 allocation ratio of the courses. As the number of participants within each course might differ, the allocation ratio of participants in the study will not fully be equal and 1:1 balanced.
Study setting
The study site is The Parker Institute at Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Denmark. From here the courses are organized and run online and onsite. The course programs and time schedules, the learning objective, the course management, the lecturers, and the delivery are identical in the two settings. The teachers use the same introductory presentations followed by training in break out groups, feed-back and discussions. For the online group, the setting is organized as meetings in the online collaboration tool Zoom® [ 16 ] using the basic available technicalities such as screen sharing, chat function for comments, and breakout rooms and other basics digital tools if preferred. The online version of the course is synchronous with live education and interaction. For the onsite group, the setting is the physical classroom at the learning facilities at the Parker Institute. Coffee and tea as well as simple sandwiches and bottles of water, which facilitate sociality, are available at the onsite setting. The participants in the online setting must get their food and drink by themselves, but online sociality is made possible by not closing down the online room during the breaks. The research methodology courses included in the study are “Practical Course in Systematic Review Technique in Clinical Research”, (see course programme in appendix 1) and “Getting started: Writing your first manuscript for publication” [ 17 ] (see course programme in appendix 2). The two courses both have 12 seats and last either three or three and a half days resulting in 2.2 and 2.6 ECTS credits, respectively. They are offered by the PhD School of the Faculty of Health and Medical Sciences, University of Copenhagen. Both courses are available and covered by the annual tuition fee for all PhD students enrolled at a Danish university.
Eligibility criteria
Inclusion criteria for participants: All PhD students enrolled on the PhD courses participate after informed consent: “Practical Course in Systematic Review Technique in Clinical Research” and “Getting started: Writing your first manuscript for publication” at the PhD School of the Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
Exclusion criteria for participants: Declining to participate and withdrawal of informed consent.
Informed consent
The PhD students at the PhD School at the Faculty of Health Sciences, University of Copenhagen participate after informed consent, taken by the daily project leader, allowing evaluation data from the course to be used after pseudo-anonymization in the project. They are informed in a welcome letter approximately three weeks prior to the course and again in the introduction the first course day. They register their consent on the first course day (Appendix 3). Declining to participate in the project does not influence their participation in the course.
Interventions
Online course settings will be compared to onsite course settings. We test if the onsite setting is different to online. Online learning is increasing but onsite learning is still the preferred educational setting in a medical context. In this case onsite learning represents “usual care”. The online course setting is meetings in Zoom using the technicalities available such as chat and breakout rooms. The onsite setting is the learning facilities, at the Parker Institute, Bispebjerg and Frederiksberg Hospital, The Capital Region, University of Copenhagen, Denmark.
The course settings are not expected to harm the participants, but should a request be made to discontinue the course or change setting this will be met, and the participant taken out of the study. Course participants are allowed to take part in relevant concomitant courses or other interventions during the trial.
Strategies to improve adherence to interventions
Course participants are motivated to complete the course irrespectively of the setting because it bears ECTS-points for their PhD education and adds to the mandatory number of ECTS-points. Thus, we expect adherence to be the same in both groups. However, we monitor their presence in the course and allocate time during class for testing the short-term outcomes ( motivation, self-efficacy, preference and learning). We encourage and, if necessary, repeatedly remind them to register with Google Scholar for our testing of the long-term outcome (academic achievement).
Outcomes are related to the Kirkpatrick model for evaluating learning (Fig. 2 ) which divides outcomes into four different levels; Reaction which includes for example motivation, self-efficacy and preferences, Learning which includes knowledge acquisition, Behaviour for practical application of skills when back at the job (not included in our outcomes), and Results for impact for end-users which includes for example academic achievements in the form of scientific articles [ 18 , 19 , 20 ].
![the format of a literature review figure 2](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs12909-024-05915-z/MediaObjects/12909_2024_5915_Fig2_HTML.png)
The Kirkpatrick model
Primary outcome
The primary outcome is short term learning (Kirkpatrick level 2).
Learning is assessed by a Multiple-Choice Questionnaire (MCQ) developed prior to the RCT specifically for this setting (Appendix 4). First the lecturers of the two courses were contacted and asked to provide five multiple choice questions presented as a stem with three answer options; one correct answer and two distractors. The questions should be related to core elements of their teaching under the heading of research training. The questions were set up to test the cognition of the students at the levels of "Knows" or "Knows how" according to Miller's Pyramid of Competence and not their behaviour [ 21 ]. Six of the course lecturers responded and out of this material all the questions which covered curriculum of both courses were selected. It was tested on 10 PhD students and within the lecturer group, revised after an item analysis and English language revised. The MCQ ended up containing 25 questions. The MCQ is filled in at baseline and repeated at the end of the course. The primary outcomes based on the MCQ is estimated as the score of learning calculated as number of correct answers out of 25 after the course. A decrease of points of the MCQ in the intervention groups denotes a deterioration of learning. In the MCQ the minimum score is 0 and 25 is maximum, where 19 indicates passing the course.
Furthermore, as secondary outcome, this outcome measurement will be categorized as binary outcome to determine passed/failed of the course defined by 75% (19/25) correct answers.
The learning score will be computed on group and individual level and compared regarding continued outcomes by the Mann–Whitney test comparing the learning score of the online and onsite groups. Regarding the binomial outcome of learning (passed/failed) data will be analysed by the Fisher’s exact test on an intention-to-treat basis between the online and onsite. The results will be presented as median and range and as mean and standard deviations, for possible future use in meta-analyses.
Secondary outcomes
Motivation assessment post course: Motivation level is measured by the Intrinsic Motivation Inventory (IMI) Scale [ 22 ] (Appendix 5). The IMI items were randomized by random.org on the 4th of August 2022. It contains 12 items to be assessed by the students on a 7-point Likert scale where 1 is “Not at all true”, 4 is “Somewhat true” and 7 is “Very true”. The motivation score will be computed on group and individual level and will then be tested by the Mann–Whitney of the online and onsite group.
Self-efficacy assessment post course: Self-efficacy level is measured by a single-item measure developed and validated by Williams and Smith [ 23 ] (Appendix 6). It is assessed by the students on a scale from 1–10 where 1 is “Strongly disagree” and 10 is “Strongly agree”. The self-efficacy score will be computed on group and individual level and tested by a Mann–Whitney test to compare the self-efficacy score of the online and onsite group.
Preference assessment post course: Preference is measured as part of the general course satisfaction evaluation with the question “If you had the option to choose, which form would you prefer this course to have?” with the options “onsite form” and “online form”.
Academic achievement assessment is based on 24 monthly measurements post course of number of publications, number of citations, h-index, i10-index. This data is collected through the Google Scholar Profiles [ 24 ] of the students as this database covers most scientific journals. Associations between onsite/online and long-term academic will be examined with Kaplan Meyer and log rank test with a significance level of 0.05.
Participant timeline
Enrolment for the course at the Faculty of Health Sciences, University of Copenhagen, Denmark, becomes available when it is published in the course catalogue. In the course description the course location is “To be announced”. Approximately 3–4 weeks before the course begins, the participant list is finalized, and students receive a welcome letter containing course details, including their allocation to either the online or onsite setting. On the first day of the course, oral information is provided, and participants provide informed consent, baseline variables, and base line knowledge scores.
The last day of scheduled activities the following scores are collected, knowledge, motivation, self-efficacy, setting preference, and academic achievement. To track students' long term academic achievements, follow-ups are conducted monthly for a period of 24 months, with assessments occurring within one week of the last course day (Table 1 ).
Sample size
The power calculation is based on the main outcome, theoretical learning on short term. For the sample size determination, we considered 12 available seats for participants in each course. To achieve statistical power, we aimed for 8 clusters in both online and onsite arms (in total 16 clusters) to detect an increase in learning outcome of 20% (learning outcome increase of 5 points). We considered an intraclass correlation coefficient of 0.02, a standard deviation of 10, a power of 80%, and a two-sided alpha level of 5%. The Allocation Ratio was set at 1, implying an equal number of subjects in both online and onsite group.
Considering a dropout up to 2 students per course, equivalent to 17%, we determined that a total of 112 participants would be needed. This calculation factored in 10 clusters of 12 participants per study arm, which we deemed sufficient to assess any changes in learning outcome.
The sample size was estimated using the function n4means from the R package CRTSize [ 25 ].
Recruitment
Participants are PhD students enrolled in 10 courses of “Practical Course in Systematic Review Technique in Clinical Research” and 10 courses of “Getting started: Writing your first manuscript for publication” at the PhD School of the Faculty of Health Sciences, University of Copenhagen, Denmark.
Assignment of interventions: allocation
Randomization will be performed on course-level. The courses are randomized by a computer random number generator [ 26 ]. To get a balanced randomization per year, 2 sets with 2 unique random integers in each, taken from the 1–4 range is requested.
The setting is not included in the course catalogue of the PhD School and thus allocation to online or onsite is concealed until 3–4 weeks before course commencement when a welcome letter with course information including allocation to online or onsite setting is distributed to the students. The lecturers are also informed of the course setting at this time point. If students withdraw from the course after being informed of the setting, a letter is sent to them enquiring of the reason for withdrawal and reason is recorded (Appendix 7).
The allocation sequence is generated by a computer random number generator (random.org). The participants and the lecturers sign up for the course without knowing the course setting (online or onsite) until 3–4 weeks before the course.
Assignment of interventions: blinding
Due to the nature of the study, it is not possible to blind trial participants or lecturers. The outcomes are reported by the participants directly in an online form, thus being blinded for the outcome assessor, but not for the individual participant. The data collection for the long-term follow-up regarding academic achievements is conducted without blinding. However, the external researcher analysing the data will be blinded.
Data collection and management
Data will be collected by the project leader (Table 1 ). Baseline variables and post course knowledge, motivation, and self-efficacy are self-reported through questionnaires in SurveyXact® [ 27 ]. Academic achievements are collected through Google Scholar profiles of the participants.
Given that we are using participant assessments and evaluations for research purposes, all data collection – except for monthly follow-up of academic achievements after the course – takes place either in the immediate beginning or ending of the course and therefore we expect participant retention to be high.
Data will be downloaded from SurveyXact and stored in a locked and logged drive on a computer belonging to the Capital Region of Denmark. Only the project leader has access to the data.
This project conduct is following the Danish Data Protection Agency guidelines of the European GDPR throughout the trial. Following the end of the trial, data will be stored at the Danish National Data Archive which fulfil Danish and European guidelines for data protection and management.
Statistical methods
Data is anonymized and blinded before the analyses. Analyses are performed by a researcher not otherwise involved in the inclusion or randomization, data collection or handling. All statistical tests will be testing the null hypotheses assuming the two arms of the trial being equal based on corresponding estimates. Analysis of primary outcome on short-term learning will be started once all data has been collected for all individuals in the last included course. Analyses of long-term academic achievement will be started at end of follow-up.
Baseline characteristics including both course- and individual level information will be presented. Table 2 presents the available data on baseline.
We will use multivariate analysis for identification of the most important predictors (motivation, self-efficacy, sex, educational background, and knowledge) for best effect on short and long term. The results will be presented as risk ratio (RR) with 95% confidence interval (CI). The results will be considered significant if CI does not include the value one.
All data processing and analyses were conducted using R statistical software version 4.1.0, 2021–05-18 (R Foundation for Statistical Computing, Vienna, Austria).
If possible, all analysis will be performed for “Practical Course in Systematic Review Technique in Clinical Research” and for “Getting started: Writing your first manuscript for publication” separately.
Primary analyses will be handled with the intention-to-treat approach. The analyses will include all individuals with valid data regardless of they did attend the complete course. Missing data will be handled with multiple imputation [ 28 ] .
Upon reasonable request, public assess will be granted to protocol, datasets analysed during the current study, and statistical code Table 3 .
Oversight, monitoring, and adverse events
This project is coordinated in collaboration between the WHO CC (DEN-62) at the Parker Institute, CAMES, and the PhD School at the Faculty of Health and Medical Sciences, University of Copenhagen. The project leader runs the day-to-day support of the trial. The steering committee of the trial includes principal investigators from WHO CC (DEN-62) and CAMES and the project leader and meets approximately three times a year.
Data monitoring is done on a daily basis by the project leader and controlled by an external independent researcher.
An adverse event is “a harmful and negative outcome that happens when a patient has been provided with medical care” [ 29 ]. Since this trial does not involve patients in medical care, we do not expect adverse events. If participants decline taking part in the course after receiving the information of the course setting, information on reason for declining is sought obtained. If the reason is the setting this can be considered an unintended effect. Information of unintended effects of the online setting (the intervention) will be recorded. Participants are encouraged to contact the project leader with any response to the course in general both during and after the course.
The trial description has been sent to the Scientific Ethical Committee of the Capital Region of Denmark (VEK) (21041907), which assessed it as not necessary to notify and that it could proceed without permission from VEK according to the Danish law and regulation of scientific research. The trial is registered with the Danish Data Protection Agency (Privacy) (P-2022–158). Important protocol modification will be communicated to relevant parties as well as VEK, the Joint Regional Information Security and Clinicaltrials.gov within an as short timeframe as possible.
Dissemination plans
The results (positive, negative, or inconclusive) will be disseminated in educational, scientific, and clinical fora, in international scientific peer-reviewed journals, and clinicaltrials.gov will be updated upon completion of the trial. After scientific publication, the results will be disseminated to the public by the press, social media including the website of the hospital and other organizations – as well as internationally via WHO CC (DEN-62) at the Parker Institute and WHO Europe.
All authors will fulfil the ICMJE recommendations for authorship, and RR will be first author of the articles as a part of her PhD dissertation. Contributors who do not fulfil these recommendations will be offered acknowledgement in the article.
This cluster randomized trial investigates if an onsite setting of a research course for PhD students within the health and medical sciences is different from an online setting. The outcomes measured are learning of research methodology (primary), preference, motivation, and self-efficacy (secondary) on short term and academic achievements (secondary) on long term.
The results of this study will be discussed as follows:
Discussion of primary outcome
Primary outcome will be compared and contrasted with similar studies including recent RCTs and mixed-method studies on online and onsite research methodology courses within health and medical education [ 10 , 11 , 30 ] and for inspiration outside the field [ 31 , 32 ]: Tokalic finds similar outcomes for online and onsite, Martinic finds that the web-based educational intervention improves knowledge, Cheung concludes that the evidence is insufficient to say that the two modes have different learning outcomes, Kofoed finds online setting to have negative impact on learning and Rahimi-Ardabili presents positive self-reported student knowledge. These conflicting results will be discussed in the context of the result on the learning outcome of this study. The literature may change if more relevant studies are published.
Discussion of secondary outcomes
Secondary significant outcomes are compared and contrasted with similar studies.
Limitations, generalizability, bias and strengths
It is a limitation to this study, that an onsite curriculum for a full day is delivered identically online, as this may favour the onsite course due to screen fatigue [ 33 ]. At the same time, it is also a strength that the time schedules are similar in both settings. The offer of coffee, tea, water, and a plain sandwich in the onsite course may better facilitate the possibility for socializing. Another limitation is that the study is performed in Denmark within a specific educational culture, with institutional policies and resources which might affect the outcome and limit generalization to other geographical settings. However, international students are welcome in the class.
In educational interventions it is generally difficult to blind participants and this inherent limitation also applies to this trial [ 11 ]. Thus, the participants are not blinded to their assigned intervention, and neither are the lecturers in the courses. However, the external statistical expert will be blinded when doing the analyses.
We chose to compare in-person onsite setting with a synchronous online setting. Therefore, the online setting cannot be expected to generalize to asynchronous online setting. Asynchronous delivery has in some cases showed positive results and it might be because students could go back and forth through the modules in the interface without time limit [ 11 ].
We will report on all the outcomes defined prior to conducting the study to avoid selective reporting bias.
It is a strength of the study that it seeks to report outcomes within the 1, 2 and 4 levels of the Kirkpatrick conceptual framework, and not solely on level 1. It is also a strength that the study is cluster randomized which will reduce “infections” between the two settings and has an adequate power calculated sample size and looks for a relevant educational difference of 20% between the online and onsite setting.
Perspectives with implications for practice
The results of this study may have implications for the students for which educational setting they choose. Learning and preference results has implications for lecturers, course managers and curriculum developers which setting they should plan for the health and medical education. It may also be of inspiration for teaching and training in other disciplines. From a societal perspective it also has implications because we will know the effect and preferences of online learning in case of a future lock down.
Future research could investigate academic achievements in online and onsite research training on the long run (Kirkpatrick 4); the effect of blended learning versus online or onsite (Kirkpatrick 2); lecturers’ preferences for online and onsite setting within health and medical education (Kirkpatrick 1) and resource use in synchronous and asynchronous online learning (Kirkpatrick 5).
Trial status
This trial collected pilot data from August to September 2021 and opened for inclusion in January 2022. Completion of recruitment is expected in April 2024 and long-term follow-up in April 2026. Protocol version number 1 03.06.2022 with amendments 30.11.2023.
Availability of data and materials
The project leader will have access to the final trial dataset which will be available upon reasonable request. Exception to this is the qualitative raw data that might contain information leading to personal identification.
Abbreviations
Artificial Intelligence
Copenhagen academy for medical education and simulation
Confidence interval
Coronavirus disease
European credit transfer and accumulation system
International committee of medical journal editors
Intrinsic motivation inventory
Multiple choice questionnaire
Doctor of medicine
Masters of sciences
Randomized controlled trial
Scientific ethical committee of the Capital Region of Denmark
WHO Collaborating centre for evidence-based clinical health promotion
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Acknowledgements
We thank the students who make their evaluations available for this trial and MSc (Public Health) Mie Sylow Liljendahl for statistical support.
Open access funding provided by Copenhagen University The Parker Institute, which hosts the WHO CC (DEN-62), receives a core grant from the Oak Foundation (OCAY-18–774-OFIL). The Oak Foundation had no role in the design of the study or in the collection, analysis, and interpretation of the data or in writing the manuscript.
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WHO Collaborating Centre (DEN-62), Clinical Health Promotion Centre, The Parker Institute, Bispebjerg & Frederiksberg Hospital, University of Copenhagen, Copenhagen, 2400, Denmark
Rie Raffing & Hanne Tønnesen
Copenhagen Academy for Medical Education and Simulation (CAMES), Centre for HR and Education, The Capital Region of Denmark, Copenhagen, 2100, Denmark
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RR, LK and HT have made substantial contributions to the conception and design of the work; RR to the acquisition of data, and RR, LK and HT to the interpretation of data; RR has drafted the work and RR, LK, and HT have substantively revised it AND approved the submitted version AND agreed to be personally accountable for their own contributions as well as ensuring that any questions which relates to the accuracy or integrity of the work are adequately investigated, resolved and documented.
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The Danish National Committee on Health Research Ethics has assessed the study Journal-nr.:21041907 (Date: 21–09-2021) without objections or comments. The study has been approved by The Danish Data Protection Agency Journal-nr.: P-2022–158 (Date: 04.05.2022).
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Raffing, R., Konge, L. & Tønnesen, H. Learning effect of online versus onsite education in health and medical scholarship – protocol for a cluster randomized trial. BMC Med Educ 24 , 927 (2024). https://doi.org/10.1186/s12909-024-05915-z
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DOI : https://doi.org/10.1186/s12909-024-05915-z
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A literature review is a document or section of a document that collects key sources on a topic and discusses those sources in conversation with each other (also called synthesis ). The lit review is an important genre in many disciplines, not just literature (i.e., the study of works of literature such as novels and plays).
Examples of literature reviews. Step 1 - Search for relevant literature. Step 2 - Evaluate and select sources. Step 3 - Identify themes, debates, and gaps. Step 4 - Outline your literature review's structure. Step 5 - Write your literature review.
A literature review is a critical analysis and synthesis of existing research on a particular topic. It provides an overview of the current state of knowledge, identifies gaps, and highlights key findings in the literature. 1 The purpose of a literature review is to situate your own research within the context of existing scholarship ...
Option 1: Chronological (according to date) Organising the literature chronologically is one of the simplest ways to structure your literature review. You start with what was published first and work your way through the literature until you reach the work published most recently. Pretty straightforward.
Step 1: Find the relevant literature. Naturally, the first step in the literature review journey is to hunt down the existing research that's relevant to your topic. While you probably already have a decent base of this from your research proposal, you need to expand on this substantially in the dissertation or thesis itself.. Essentially, you need to be looking for any existing literature ...
Where the emphasis is on an investigation or analysis of the literature (analytical evaluation) then your literature review is concentrating on the nature of the problem, its cause and effect as a basis for action to solve it. FORMATIVE When a literature review emphasizes explanation of what you believe the knowledge stemming from
The format of a literature review varies and depends upon the length of the research. Like any other research paper, the literature review format must contain three sections: introduction, body, and conclusion. The goals and objectives of the research question determine what goes inside these three sections.
WRITING A TARGETED LITERATURE REVIEW a targeted literature review is NOT: ¡ a sophisticated evaluation of the entire literature or literatures related to your topic ¡ a set of thinly connected summaries of important related works haphazardly selected from many subfields a targeted literature review IS: ¡ a carefully curated set of sources from a small number of subfield literatures
The purpose of a literature review. The four main objectives of a literature review are:. Studying the references of your research area; Summarizing the main arguments; Identifying current gaps, stances, and issues; Presenting all of the above in a text; Ultimately, the main goal of a literature review is to provide the researcher with sufficient knowledge about the topic in question so that ...
What is a literature review? Definition: A literature review is a systematic examination and synthesis of existing scholarly research on a specific topic or subject. Purpose: It serves to provide a comprehensive overview of the current state of knowledge within a particular field. Analysis: Involves critically evaluating and summarizing key findings, methodologies, and debates found in ...
Here is a sample paragraph from a literature review about sexism and language to illuminate the following discussion: However, other studies have shown that even gender-neutral antecedents are more likely to produce masculine images than feminine ones (Gastil, 1990). Hamilton (1988) asked students to complete sentences that required them to ...
A literature review requires the writer to perform extensive research on published work in one's field in order to explain how one's own work fits into the larger conversation regarding a particular topic. This task requires the writer to spend time reading, managing, and conveying information; the complexity of literature reviews can make ...
he simplest thing of all—structure. Everything you write has three components: a beginning, a middle and an e. d and each serves a different purpose. In practice, this means your review will have an introduction, a main body where you review the literature an. a conclusion where you tie things up.
A review is a required part of grant and research proposals and often a chapter in theses and dissertations. Generally, the purpose of a review is to analyze critically a segment of a published body of knowledge through summary, classification, and comparison of prior research studies, reviews of literature, and theoretical articles.
Literature reviews are in great demand in most scientific fields. Their need stems from the ever-increasing output of scientific publications .For example, compared to 1991, in 2008 three, eight, and forty times more papers were indexed in Web of Science on malaria, obesity, and biodiversity, respectively .Given such mountains of papers, scientists cannot be expected to examine in detail every ...
The literature review opening/introduction section; The theoretical framework (or foundation of theory) The empirical research; The research gap; The closing section; We then progress to the sample literature review (from an A-grade Master's-level dissertation) to show how these concepts are applied in the literature review chapter. You can ...
Include References/Works Cited List. As you are writing the literature review you will mention the author names and the publication years in your text, but you will still need to compile comprehensive citations for each entry at the end of your review. Follow APA, MLA, or Chicago style guidelines, as your course requires.
A formal literature review is an evidence-based, in-depth analysis of a subject. There are many reasons for writing one and these will influence the length and style of your review, but in essence a literature review is a critical appraisal of the current collective knowledge on a subject. Rather than just being an exhaustive list of all that ...
Steps for Conducting a Lit Review; Finding "The Literature" Organizing/Writing; APA Style This link opens in a new window; Chicago: Notes Bibliography This link opens in a new window; MLA Style This link opens in a new window; Sample Literature Reviews. Sample Lit Reviews from Communication Arts; Have an exemplary literature review? Get Help!
A literature review is a written approach to examining published information on a particular topic or field. Authors use this review of literature to create a foundation and justification for their research or to demonstrate knowledge on the current state of a field. This review can take the form of a course assignment or a section of a longer ...
A literature review is a compilation of the works published in a particular field of study or line of research, usually over a specific period of time, in the form of an in-depth, critical bibliographic essay or annotated list in which attention is drawn to the most significant works.. Summarizes and analyzes previous research relevant to a topic ...
These sections serve to establish a scholarly basis for the research or discussion within the paper. In a standard 8000-word journal article, the literature review section typically spans between 750 and 1250 words. The first few sentences or the first paragraph within this section often serve as an introduction.
1. Narrative Literature Review. A narrative literature review, also known as a traditional literature review, involves analyzing and summarizing existing literature without adhering to a structured methodology. It typically provides a descriptive overview of key concepts, theories, and relevant findings of the research topic.
A narrative literature review is an integrated analysis of the existing literature used to summarize a body of literature, draw conclusions about a topic, and identify research gaps. By understanding the current state of the literature, you can show how new research fits into the larger research landscape. A narrative literature review is NOT:
How to conduct a literature review. This comprehensive guide offers tips on researching and writing literature reviews. Topics covered include locating background information, the components of the literature review, the initial steps of a literature review, critical analysis guidelines, and recommended research resources. ... Examples & Format ...
Learn how to implement a foundational element of scholarly writing—a literature review for an empirical study—with guidance for undergraduate writers. Join the APA Style experts as they outline key tasks in writing an effective literature review and provide strategies for approaching those tasks. ... Being able to create, format, and ...
To Sum Up. Writing a research proposal can be straightforward if you break it down into manageable steps: Pick a strong research proposal topic that interests you and has enough material to explore.; Craft an engaging introduction that clearly states your research question and objectives.; Do a thorough literature review to see how your work fits into the existing research landscape.
The word "literature review" can refer to two related things that are part of the broader literature review process. The first is the task of reviewing the literature - i.e. sourcing and reading through the existing research relating to your research topic. The second is the actual chapter that you write up in your dissertation, thesis or ...
Sample size is calculated to 20 clusters and courses are randomized by a computer random number generator. Statistical analyses will be performed blinded by an external statistical expert. Discussion. Primary outcome and secondary significant outcomes will be compared and contrasted with relevant literature.
Group 1: Language A: literature. English A: literature paper 1 and marking notes (first assessment 2021) [512KB] English A paper 2 [197KB] Group 2: Language acquisition: Language B. English B HL specimen paper 2 audio [84,3 MB] English B SL specimen paper 2 audio [61,7 MB] English B specimen papers and markschemes (first assessment 2020) [2.1MB]