what do you mean by literature review in research methodology

What is a Literature Review? How to Write It (with Examples)

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: .

• 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.

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: 

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. 

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. 

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. 

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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How to write a good literature review 

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. 

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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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: 

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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Libraries | Research Guides

Literature reviews, what is a literature review, learning more about how to do a literature review, sage campus course: conduct a literature review.

• Planning the Review
• The Research Question
• Choosing Where to Search
• Organizing the Review
• Writing the Review

A literature review is a review and synthesis of existing research on a topic or research question. A literature review is meant to analyze the scholarly literature, make connections across writings and identify strengths, weaknesses, trends, and missing conversations. A literature review should address different aspects of a topic as it relates to your research question. A literature review goes beyond a description or summary of the literature you have read. 

• Sage Research Methods Core This link opens in a new window SAGE Research Methods supports research at all levels by providing material to guide users through every step of the research process. SAGE Research Methods is the ultimate methods library with more than 1000 books, reference works, journal articles, and instructional videos by world-leading academics from across the social sciences, including the largest collection of qualitative methods books available online from any scholarly publisher. – Publisher

This course guides you through the entire process of preparing a literature review, selecting and analyzing existing literature, and structuring and writing a quality literature review. Most importantly, the course develops skills in using evidence to create and present an engaging and critical argument.

Beginner | 5 hours total for all modules

• What is the Purpose of a Literature Review?
• What to Do Before You Start?
• Selecting and Analyzing the Right Literature
• How Do I Create My Argument?
• How Do I Write My Argument?
• How Should I Structure a Literature Review?

• Next: Planning the Review >>
• Last Updated: Oct 14, 2024 1:12 PM
• URL: https://libguides.northwestern.edu/literaturereviews

Purdue Online Writing Lab Purdue OWL® College of Liberal Arts

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.

• University of Texas Libraries

Literature Reviews

• What is a literature review?
• Steps in the Literature Review Process
• Define your research question
• Determine inclusion and exclusion criteria
• Choose databases and search
• Review Results
• Synthesize Results
• Analyze Results
• Librarian Support
• Artificial Intelligence (AI) Tools

What is a Literature Review?

A literature or narrative review is a comprehensive review and analysis of the published literature on a specific topic or research question. The literature that is reviewed contains: books, articles, academic articles, conference proceedings, association papers, and dissertations. It contains the most pertinent studies and points to important past and current research and practices. It provides background and context, and shows how your research will contribute to the field. 

A literature review should: 

• Provide a comprehensive and updated review of the literature;
• Explain why this review has taken place;
• Articulate a position or hypothesis;
• Acknowledge and account for conflicting and corroborating points of view

From  S age Research Methods

Purpose of a Literature Review

A literature review can be written as an introduction to a study to:

• Demonstrate how a study fills a gap in research
• Compare a study with other research that's been done

Or it can be a separate work (a research article on its own) which:

• Organizes or describes a topic
• Describes variables within a particular issue/problem

Limitations of a Literature Review

Some of the limitations of a literature review are:

• It's a snapshot in time. Unlike other reviews, this one has beginning, a middle and an end. There may be future developments that could make your work less relevant.
• It may be too focused. Some niche studies may miss the bigger picture.
• It can be difficult to be comprehensive. There is no way to make sure all the literature on a topic was considered.
• It is easy to be biased if you stick to top tier journals. There may be other places where people are publishing exemplary research. Look to open access publications and conferences to reflect a more inclusive collection. Also, make sure to include opposing views (and not just supporting evidence).

Source: Grant, Maria J., and Andrew Booth. “A Typology of Reviews: An Analysis of 14 Review Types and Associated Methodologies.” Health Information & Libraries Journal, vol. 26, no. 2, June 2009, pp. 91–108. Wiley Online Library, doi:10.1111/j.1471-1842.2009.00848.x.

Librarian Assistance

For help, please contact the librarian for your subject area.  We have a guide to library specialists by subject .

Periodically, UT Libraries runs a workshop covering the basics and library support for literature reviews. While we try to offer these once per academic year, we find providing the recording to be helpful to community members who have missed the session. Following is the most recent recording of the workshop, Conducting a Literature Review. To view the recording, a UT login is required.

• October 2 2, 2024
• Last Updated: Oct 23, 2024 11:46 AM
• URL: https://guides.lib.utexas.edu/literaturereviews

Research Methods: A Student's Comprehensive Guide: Literature Reviews

• Research Approaches
• Types of Sources
• Accessing Resources
• Evaluating Sources
• Question Crafting
• Search Strategies
• Annotated Bibliography
• Literature Reviews
• Citations This link opens in a new window

Literature Review

What is a Literature Review?  A literature review is a critical analysis of existing research related to a specific topic or research question. Rather than simply summarizing the sources, a literature review evaluates, compares, and synthesizes the literature to highlight trends, gaps, and insights that inform your research.

Purpose and Importance:  Literature reviews serve multiple key functions:

• Contextualization:  They provide background on your research topic, helping to situate your work within the broader field.
• Identification of Gaps:  A thorough review highlights areas where further research is needed, guiding your own contributions.
• Critical Evaluation:  By comparing and contrasting sources, you develop a deeper understanding of the subject and establish the credibility of your research.
• Foundation for Research:  A literature review demonstrates your knowledge of the field, forming a strong basis for your methodology and research approach.

Difference Between a Literature Review and an Annotated Bibliography:  While both a literature review and an annotated bibliography involve analyzing sources, they serve different purposes. An annotated bibliography focuses on summarizing and evaluating individual sources in isolation. In contrast, a literature review synthesizes multiple sources to form a cohesive narrative, identifying patterns, themes, and debates within the literature. The literature review also typically organizes the information thematically or methodologically rather than listing sources one by one.

Q: What is the main difference between a narrative review and a systematic review? A: A narrative review provides a broad overview of existing research on a topic, while a systematic review follows a structured methodology to identify, evaluate, and synthesize all relevant studies on a specific question.

Q: How do I choose the best type of literature review for my research? A: Consider your research question and objectives. A narrative review is suitable for broad overviews, while a systematic review is best for comprehensive analyses. A scoping review helps map out the existing literature, and a meta-analysis combines quantitative results from multiple studies.

Q: How many sources should I include in my literature review? A: The number of sources depends on your topic and the scope of your review. Generally, aim to include a comprehensive selection that represents the current state of research. Ensure sources are relevant and contribute to answering your research question.

Q: Can I include unpublished sources in my literature review? A:  Yes, including unpublished sources such as dissertations, theses, or reports can provide valuable insights and fill gaps in the published literature. Ensure these sources are credible and relevant.

Q: How do I ensure my literature review is critical and not just descriptive? A: Focus on evaluating and synthesizing the sources rather than just summarizing them. Analyze the strengths, weaknesses, and contributions of each study. Highlight trends, debates, and gaps in the literature.

Scribbr: How to Write a Literature Review

Gain valuable insights on how to write an impactful literature review with this comprehensive guide!

Scribbr: Tips for Writing a Literature Review

Explore practical tips and strategies for structuring a literature review in this detailed tutorial.

• Common Mistakes

Types of Literature Reviews

• Overview:  Provides a comprehensive summary of the research on a specific topic. It offers a broad overview of the field, summarizing the key findings and trends without a strict methodological approach.
• Purpose:  Useful for providing a general understanding of a topic, identifying major themes, and outlining the historical development of research.
• Overview:  Follows a structured and transparent methodology to identify, evaluate, and synthesize all relevant studies on a specific research question. It aims to minimize bias and provide a comprehensive overview of the evidence.
• Purpose:  Ideal for answering specific research questions by systematically collecting and analyzing data from multiple studies. It often includes a meta-analysis component to quantitatively summarize the results.
• Overview:  Maps the existing literature on a broad topic, identifying key concepts, gaps, and areas for further research. It is less focused on synthesizing results and more on exploring the extent and nature of the research.
• Purpose:  Useful for understanding the breadth of research on a topic, especially when the area is complex or emerging. It helps to clarify the scope of existing evidence and inform future research directions.
• Overview:  Uses statistical techniques to combine and analyze the results of multiple studies, providing a quantitative summary of the evidence. It aims to identify patterns and determine the overall effect.
• Purpose:  Ideal for drawing general conclusions from a body of research, especially when individual studies have varying results. It provides a higher level of statistical power and precision.

Crafting a Literature Review

• Clarify Your Research Question:  Start by articulating the specific research question or objective that your literature review will address. This will help guide your search and ensure that the review remains focused.
• Set Boundaries:  Determine the scope of your review by defining parameters such as time frame, geographical area, or specific subtopics. This helps in managing the breadth of your review and maintaining relevance.
• Utilize Academic Databases:  Access scholarly articles, books, and other research materials using databases like JSTOR, PubMed, or Google Scholar.
• Expand Your Search:  Explore references in key studies, look for gray literature, and consult library catalogs to ensure a comprehensive search.
• Categorize Sources:  Group your sources by themes, methodologies, or chronological order. This organization helps in synthesizing information and presenting a coherent review.
• Use Reference Management Tools:  Tools such as RefWorks, Zotero, or EndNote can assist in managing and sorting your sources effectively.
• Identify Patterns and Themes:  Look for recurring themes, trends, and debates within the literature. Analyze how different studies relate to one another.
• Compare and Contrast:  Evaluate the methodologies, findings, and perspectives of different sources. Highlight agreements and disagreements to provide a balanced view.
• Chronological:  Organize by the timeline of research developments.
• Thematic:  Group by themes or topics.
• Methodological:  Arrange based on research methods used.
• Create an Outline:  Develop a clear outline based on your chosen structure to guide your writing and ensure logical flow.
• Analyze, Don’t Just Summarize:  Go beyond summarizing each source. Critically analyze how each piece of literature contributes to your understanding of the topic.
• Provide Context:  Explain how the literature connects to your research question or hypothesis. Show how your work builds on or challenges existing knowledge.
• Seek Feedback:  Share your draft with peers or mentors to obtain constructive feedback.
• Edit for Clarity:  Review your work for clarity, coherence, and completeness. Ensure that your review is logically organized and free of errors.

Example of a Literature Review

To illustrate how a literature review is structured and written, here's a simplified example based on a hypothetical research topic:  The Impact of Social Media on Adolescent Mental Health.

Introduction: The introduction provides an overview of the research topic and its significance.

Social media has become an integral part of adolescents' lives, raising concerns about its impact on mental health. This literature review examines existing research on how social media use affects adolescent well-being, focusing on both positive and negative outcomes.

Body: The body of the review is organized thematically or methodologically.

Positive Impacts of Social Media:

• Social Connectivity:  Studies highlight that social media platforms enable adolescents to maintain and strengthen social connections, providing emotional support and reducing feelings of isolation (Smith, 2021; Lee & Johnson, 2022).
• Educational Benefits:  Research indicates that social media can facilitate educational opportunities and learning through online communities and resources (Adams, 2020).

Negative Impacts of Social Media:

• Mental Health Issues:  Several studies link excessive social media use with increased levels of anxiety, depression, and low self-esteem among adolescents (Brown et al., 2019; Thompson & Miller, 2021).
• Cyberbullying:  Evidence shows that social media platforms can be a breeding ground for cyberbullying, leading to significant psychological distress (Green & Taylor, 2022).

Mixed Findings:

• Variability in Effects:  Some research finds that the impact of social media on mental health varies depending on individual factors such as frequency of use, type of content consumed, and pre-existing mental health conditions (Davis, 2021; Wilson, 2022).

Discussion:   The discussion synthesizes the findings, identifies trends, and highlights gaps:

The reviewed literature reveals a complex relationship between social media and adolescent mental health. While social media can offer support and educational benefits, its negative impacts—particularly related to mental health issues and cyberbullying—are significant. Further research is needed to understand how different variables affect these outcomes and to develop strategies for mitigating negative effects.

Conclusion: The conclusion summarizes the key findings and suggests areas for future research:

In summary, social media has both positive and negative effects on adolescent mental health. Addressing these impacts requires a nuanced understanding of the various factors involved and targeted interventions to support healthy social media use. Future research should focus on longitudinal studies to better assess the long-term effects of social media on mental health.

• References:  Ensure to include a list of all sources cited. In a real review, the sources cited above would be formatted according to the appropriate citation style (e.g., APA, MLA).
• Formatting:  Use headings and subheadings to clearly organize each section of the review.

This example provides a framework for how a literature review should be structured and the type of content that should be included. It demonstrates the synthesis of various sources to present a cohesive narrative on the research topic.

Common Mistakes to Avoid

• Tip:  Ensure every source and discussion point directly relates to your research question or objective. Maintain a clear focus throughout the review.
• Tip:  Prioritize primary sources and original studies to provide a robust foundation. Use secondary sources sparingly for context or background.
• Tip:  Critically assess each study’s methodology, findings, and impact on the field. Highlight strengths and weaknesses for a balanced view.
• Tip:  Use clear headings and subheadings. Choose a logical structure (e.g., thematic, chronological) and ensure smooth transitions between sections.
• Tip:  Discuss gaps in the literature to strengthen your review and position your research within the broader field.
• Tip:  Follow the appropriate citation style meticulously. Ensure all sources are cited correctly and consistently.
• Tip:  Base conclusions on a comprehensive review of the literature. Avoid generalizations unless supported by substantial evidence from multiple sources.
• Tip:  Stay updated with recent publications and incorporate the most current research to ensure relevance and accuracy.

Literature Review Matrix

A  Literature Review Matrix  is a powerful tool that helps you organize and evaluate the sources you've gathered for your literature review. Think of it as a structured table that allows you to visually track key details from each source, helping you compare and contrast research findings, methods, and relevance to your work.

The primary goal of a Literature Review Matrix is to provide a clear and organized view of your sources side-by-side. This makes it easier to spot patterns, identify gaps in the literature, and see how different studies connect or diverge. By using this matrix, you can:

• Summarize key information from each source.
• See the progression of research on a topic.
• Track how each source contributes to your own research goals.

When crafting your literature review, the matrix becomes a valuable reference. It offers a concise summary of each source, facilitating the synthesis of information and revealing connections between works. This organized approach helps ensure you cover all important themes and insights.

Key Components

A typical Literature Review Matrix includes:

• Author(s) & Date:  For tracking contributions and publication dates.
• Theoretical/Conceptual Framework:  Outlines the theories or concepts guiding the study.
• Research Question(s)/Hypotheses:  Identifies the focus and aims of the research.
• Methodology:  Describes the study design and methods used.
• Analysis & Results:  Summarizes the data analysis and key findings.
• Conclusions:  Highlights the main conclusions drawn from the research.
• Implications for Future Research:  Suggests areas for further investigation.
• Implications for Practice:  Discusses practical applications of the findings.

A Literature Review Matrix establishes a solid foundation for a well-organized literature review, ensuring you capture all critical insights and connections between sources. 

How to Use the Matrix

To make the most of your Literature Review Matrix, follow these steps to complete each category:

Author(s) & Date : Record the author(s) of the study and the publication date. This helps track contributions and the relevance of the research over time.

Theoretical/Conceptual Framework : Note the theories or concepts guiding the study. This provides insight into the foundation of the research and its theoretical background.

Research Question(s)/Hypotheses : Summarize the main research questions or hypotheses the study addresses. This clarifies the focus and objectives of the research.

Methodology : Describe the research design and methods used. This includes the type of study, data collection methods, and analysis techniques.

Analysis & Results : Outline the main findings and how the data was analyzed. This section highlights the key discoveries of the research.

Conclusions : Record the study’s conclusions and implications. This provides a summary of the research outcomes and their significance.

Implications for Future Research : Identify suggestions for further research proposed by the study. This helps in understanding how the research contributes to ongoing scholarly conversation.

Implications for Practice : Note any practical applications or recommendations made. This connects the research findings to real-world applications.

Accurately filling in each category of the Literature Review Matrix ensures a comprehensive and organized overview of your sources, making it easier to synthesize and integrate information into your literature review.

Why Use a Literature Review Matrix?

A Literature Review Matrix is not just a tool but a strategic aid in organizing and synthesizing your research. Here’s why it’s invaluable:

Enhanced Clarity : By laying out your sources in a matrix format, you gain a clear, visual representation of the key components of each study. This clarity helps in quickly identifying patterns, contradictions, and gaps in the literature.

Streamlined Synthesis : The matrix allows you to compare and contrast findings across multiple sources efficiently. This makes synthesizing information from different studies simpler, leading to a more cohesive and comprehensive literature review.

Efficient Writing : With all essential information organized in one place, writing your literature review becomes more straightforward. The matrix provides a structured reference that helps in drafting sections and ensuring that all relevant points are addressed.

Identification of Trends and Gaps : The matrix helps in spotting trends in research and identifying areas where further investigation is needed. This insight is crucial for framing your research questions and shaping your own study.

Improved Organization : It facilitates a systematic approach to managing your sources, reducing the risk of overlooking important details and ensuring that your review is well-organized and thorough.

Using a Literature Review Matrix enhances the efficiency and quality of your literature review process. It’s a powerful tool that supports clarity, synthesis, and effective writing, ultimately contributing to a more insightful and organized review.

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Methodological Approaches to Literature Review

• Living reference work entry
• First Online: 09 May 2023
• Cite this living reference work entry

• Dennis Thomas 2 ,
• Elida Zairina 3 &
• Johnson George 4  

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The literature review can serve various functions in the contexts of education and research. It aids in identifying knowledge gaps, informing research methodology, and developing a theoretical framework during the planning stages of a research study or project, as well as reporting of review findings in the context of the existing literature. This chapter discusses the methodological approaches to conducting a literature review and offers an overview of different types of reviews. There are various types of reviews, including narrative reviews, scoping reviews, and systematic reviews with reporting strategies such as meta-analysis and meta-synthesis. Review authors should consider the scope of the literature review when selecting a type and method. Being focused is essential for a successful review; however, this must be balanced against the relevance of the review to a broad audience.

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Systematic Reviews in Educational Research: Methodology, Perspectives and Application

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Centre of Excellence in Treatable Traits, College of Health, Medicine and Wellbeing, University of Newcastle, Hunter Medical Research Institute Asthma and Breathing Programme, Newcastle, NSW, Australia

Dennis Thomas

Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia

Elida Zairina

Centre for Medicine Use and Safety, Monash Institute of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia

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Thomas, D., Zairina, E., George, J. (2023). Methodological Approaches to Literature Review. In: Encyclopedia of Evidence in Pharmaceutical Public Health and Health Services Research in Pharmacy. Springer, Cham. https://doi.org/10.1007/978-3-030-50247-8_57-1

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