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Review of Related Literature (RRL)

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Review of Related Literature (RRL)

The Review of Related Literature (RRL) is a crucial section in research that examines existing studies and publications related to a specific topic. It summarizes and synthesizes previous findings, identifies gaps, and provides context for the current research. RRL ensures the research is grounded in established knowledge, guiding the direction and focus of new studies.

What Is Review of Related Literature (RRL)?

The Review of Related Literature (RRL) is a detailed analysis of existing research relevant to a specific topic. It evaluates, synthesizes, and summarizes previous studies to identify trends, gaps, and conflicts in the literature. RRL provides a foundation for new research, ensuring it builds on established knowledge and addresses existing gaps.

Format of Review of Related Literature (RRL)

The Review of Related Literature (RRL) is a critical part of any research paper or thesis . It provides an overview of existing research on your topic and helps to establish the context for your study. Here is a typical format for an RRL:

1. Introduction

  • Purpose : Explain the purpose of the review and its importance to your research.
  • Scope : Define the scope of the literature reviewed, including the time frame, types of sources, and key themes.

2. Theoretical Framework

  • Concepts and Theories : Present the main theories and concepts that underpin your research.
  • Relevance : Explain how these theories relate to your study.

3. Review of Empirical Studies

  • Sub-theme 1 : Summarize key studies, including methodologies, findings, and conclusions.
  • Sub-theme 2 : Continue summarizing studies, focusing on different aspects or variables.
  • Sub-theme 3 : Include any additional relevant studies.

4. Methodological Review

  • Approaches : Discuss the various methodologies used in the reviewed studies.
  • Strengths and Weaknesses : Highlight the strengths and weaknesses of these methodologies.
  • Gaps : Identify gaps in the existing research that your study aims to address.

5. Synthesis and Critique

  • Integration : Integrate findings from the reviewed studies to show the current state of knowledge.
  • Critique : Critically evaluate the literature, discussing inconsistencies, limitations, and areas for further research.

6. Conclusion

  • Summary : Summarize the main findings from the literature review.
  • Research Gap : Clearly state the research gap your study will address.
  • Contribution : Explain how your study will contribute to the existing body of knowledge.

7. References

  • Citation Style : List all the sources cited in your literature review in the appropriate citation style (e.g., APA, MLA, Chicago).
Review of Related Literature (RRL) 1. Introduction This review examines research on social media’s impact on mental health, focusing on anxiety and depression across various demographics over the past ten years. 2. Theoretical Framework Anchored in Social Comparison Theory and Uses and Gratifications Theory, this review explores how individuals’ social media interactions affect their mental health. 3. Review of Empirical Studies Adolescents’ Mental Health Instagram & Body Image : Smith & Johnson (2017) found Instagram use linked to body image issues and lower self-esteem among 500 high school students. Facebook & Anxiety : Brown & Green (2016) showed Facebook use correlated with higher anxiety and depressive symptoms in a longitudinal study of 300 students. Young Adults’ Mental Health Twitter & Stress : Davis & Lee (2018) reported higher stress levels among heavy Twitter users in a survey of 400 university students. LinkedIn & Self-Esteem : Miller & White (2019) found LinkedIn use positively influenced professional self-esteem in 200 young professionals. Adult Mental Health General Social Media Use : Thompson & Evans (2020) found moderate social media use associated with better mental health outcomes, while excessive use correlated with higher anxiety and depression in 1,000 adults. 4. Methodological Review Studies used cross-sectional surveys, longitudinal designs, and mixed methods. Cross-sectional surveys provided large data sets but couldn’t infer causation. Longitudinal studies offered insights into long-term effects but were resource-intensive. Mixed methods enriched data through qualitative insights but required careful integration. 5. Synthesis and Critique The literature shows a complex relationship between social media and mental health, with platform-specific and demographic-specific effects. However, reliance on self-reported data introduces bias, and many cross-sectional studies limit causal inference. More longitudinal and experimental research is needed. 6. Conclusion Current research offers insights into social media’s mental health impact but leaves gaps, particularly regarding long-term effects and causation. This study aims to address these gaps through comprehensive longitudinal analysis. 7. References Brown, A., & Green, K. (2016). Facebook Use and Anxiety Among High School Students . Psychology in the Schools, 53(3), 257-264. Davis, R., & Lee, S. (2018). Twitter and Psychological Stress: A Study of University Students . Journal of College Student Development, 59(2), 120-135. Miller, P., & White, H. (2019). LinkedIn and Its Effect on Professional Self-Esteem . Journal of Applied Psychology, 104(1), 78-90. Smith, J., & Johnson, L. (2017). The Impact of Instagram on Teen Body Image . Journal of Adolescent Health, 60(5), 555-560. Thompson, M., & Evans, D. (2020). The Relationship Between Social Media Use and Mental Health in Adults . Cyberpsychology, Behavior, and Social Networking, 23(4), 201-208.

Review of Related Literature (RRL) Examples

Review of related literature in research, review of related literature in research paper, review of related literature qualitative research.

Review-of-Related-Literature-RRL-in-Research-Edit-Download-Pdf

Review of Related Literature Quantitative Research

Review-of-Related-Literature-RRL-in-Quantitative-Research-Edit-Download-Pdf

More Review of Related Literature (RRL) Examples

  • Impact of E-learning on Student Performance
  • Effectiveness of Mindfulness in Workplace
  • Green Building and Energy Efficiency
  • Impact of Technology on Healthcare Delivery
  • Effects of Nutrition on Cognitive Development in Children
  • Impact of Employee Training Programs on Productivity
  • Effects of Climate Change on Biodiversity
  • Impact of Parental Involvement on Student Achievement
  • Effects of Mobile Learning on Student Engagement
  • Effects of Urban Green Spaces on Mental Health

Purpose of the Review of Related Literature (RRL)

The Review of Related Literature (RRL) serves several critical purposes in research:

  • Establishing Context : It situates your research within the broader field, showing how your study relates to existing work.
  • Identifying Gaps : It highlights gaps, inconsistencies, and areas needing further exploration in current knowledge, providing a clear rationale for your study.
  • Avoiding Duplication : By reviewing what has already been done, it helps ensure your research is original and not a repetition of existing studies.
  • Building on Existing Knowledge : It allows you to build on the findings of previous research, using established theories and methodologies to inform your work.
  • Theoretical Foundation : It provides a theoretical basis for your research, grounding it in existing concepts and theories.
  • Methodological Insights : It offers insights into the methods and approaches used in similar studies, helping you choose the most appropriate methods for your research.
  • Establishing Credibility : It demonstrates your familiarity with the field, showing that you are well-informed and have a solid foundation for your research.
  • Supporting Arguments : It provides evidence and support for your research questions, hypotheses, and objectives, strengthening the overall argument of your study.

How to Write Review of Related Literature (RRL)

Writing a Review of Related Literature (RRL) involves several key steps. Here’s a step-by-step guide:

1. Define the Scope and Objectives

  • Determine the Scope : Decide on the breadth of the literature you will review, including specific themes, time frame, and types of sources.
  • Set Objectives : Clearly define the purpose of the review. What do you aim to achieve? Identify gaps, establish context, or build on existing knowledge.

2. Search for Relevant Literature

  • Identify Keywords : Use keywords and phrases related to your research topic.
  • Use Databases : Search academic databases like Google Scholar, PubMed, JSTOR, etc., for relevant articles, books, and papers.
  • Select Sources : Choose sources that are credible, recent, and relevant to your research.

3. Evaluate and Select the Literature

  • Read Abstracts and Summaries : Quickly determine the relevance of each source.
  • Assess Quality : Consider the methodology, credibility of the authors, and publication source.
  • Select Key Studies : Choose studies that are most relevant to your research questions and objectives.

4. Organize the Literature

  • Thematic Organization : Group studies by themes or topics.
  • Chronological Organization : Arrange studies in the order they were published to show the development of ideas over time.
  • Methodological Organization : Categorize studies by the methods they used.

5. Write the Review

  • State the purpose and scope of the review.
  • Explain the importance of the topic.
  • Theoretical Framework : Present and discuss the main theories and concepts.
  • Summarize key studies, including their methodologies, findings, and conclusions.
  • Organize by themes or other chosen organizational methods.
  • Methodological Review : Discuss the various methodologies used, highlighting their strengths and weaknesses.
  • Synthesis and Critique : Integrate findings, critically evaluate the literature, and identify gaps or inconsistencies.
  • Summarize the main findings from the literature review.
  • Highlight the research gaps your study will address.
  • State how your research will contribute to the existing knowledge.

6. Cite the Sources

  • Use Appropriate Citation Style : Follow the required citation style (e.g., APA, MLA, Chicago).
  • List References : Provide a complete list of all sources cited in your review.

What is an RRL?

An RRL summarizes and synthesizes existing research on a specific topic to identify gaps and guide future studies.

Why is RRL important?

It provides context, highlights gaps, and ensures new research builds on existing knowledge.

How do you write an RRL?

Organize by themes, summarize studies, evaluate methodologies, identify gaps, and conclude with relevance to current research.

What sources are used in RRL?

Peer-reviewed journals, books, conference papers, and credible online resources.

How long should an RRL be?

Length varies; typically 10-20% of the total research paper.

What are common RRL mistakes?

Lack of organization, insufficient synthesis, over-reliance on outdated sources, and failure to identify gaps.

Can an RRL include non-scholarly sources?

Primarily scholarly, but reputable non-scholarly sources can be included for context.

What is the difference between RRL and bibliography?

RRL synthesizes and analyzes the literature, while a bibliography lists sources.

How often should an RRL be updated?

Regularly, especially when new relevant research is published.

Can an RRL influence research direction?

Yes, it identifies gaps and trends that shape the focus and methodology of new research.

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How to refer to other studies or literature in the different sections of a research paper

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  • 07 October, 2021

There are many articles which discuss how you can include and discuss existing studies and research in the literature review section of a paper. However, in addition to the literature review , there are many other opportunities to discuss or engage with prior studies in your research. This article offers guidance on how to include other studies or literature in different sections in a research paper.

Engaging with literature in the Introduction

Prior studies are often mentioned in the Introduction , generally as high-level summaries without much detail. Although some people may choose not to use existing literature or research to motivate a study, this is not an uncommon practice. Researchers sometimes rely on prior studies to emphasise the importance of the current study – for example, in challenging a standing argument or addressing an outstanding gap . Prior studies are also often discussed to build the foundation of the arguments of the research paper in question. 

Working with previous studies in the Methodology

It is also common practice to refer to prior literature in the Methodology. You may refer to prior studies as you design the study, collect and/or select data and perform the analysis. If this is the case, it is important to explain clearly why you are using and drawing from previous studies and how these are relevant to your own research paper. 

It is also possible to refer to prior studies to highlight the different methodological choices you have taken in your research. For example, there may be a comparison of the data sources, the sample or subject selections. Or, you might offer a comparison in the decisions made for different parameters, constructs, factors, model selection preferences and so on. Highlighting these differences can help you to clearly present new perspectives and why your study provides value to the field.

If you are offering a comparison between your current and previous studies, try to avoid solely comparing and contrasting, or simply stating what you have performed. What is more important is to explain why you have made these different decisions so that readers can understand the rationale behind your methodological decisions and your project design .

Referring to the literature in the Discussion and Conclusion

It is always a good idea to refer to prior studies and existing literature in the Discussion or Conclusion sections. This is a good time to reiterate the arguments, research questions/hypotheses and objectives that you introduced in the earlier sections of the paper and to discuss your results and findings .

Integrating other relevant literature into your Discussion serves two key purposes . First, it outlines what has already been achieved in prior studies. Second, you can explain how your study builds on this existing work to advance the knowledge in the field . 

Sometimes, through this discussion, you can also demonstrate why or how your findings are the same as or different from prior studies. 

Three common mistakes to avoid

When forging connections between prior studies and your own research paper, it is important to be aware of three common mistakes that authors make.

  • Some researchers sometimes focus too much on the existing literature , so that their research paper does not, ultimately, seem to provide many new insights. 
  • Because of the way authors might present and discuss prior studies in the Introduction, readers may become distracted or be led to raise more questions that are not relevant to the present research paper. [ Tip : In this and the above instances, it is advisable that you ensure your discussion of the literature is relevant at all times to the specific issues that you are discussing in each section and does not overshadow the main idea(s) in the research paper.]
  • Although you can critique prior studies to highlight the unique approach or key message of your study, it is a good practice to avoid subjective assessments, so as not to introduce any personal biases into your discussion of either the literature or your own research. 

In conclusion

Remember that engagement with the literature serves primarily to set the scene and contextualise your own research . It should provide enough information for your reader to understand the relevance and significance of your study, but not take over the main focus of the paper.

Read next (fifth/final) in series: Difference between a literature review and a critical review

Read previous (third) in series: Deciding what to include and exclude as you begin to write your literature review

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how to write review of related literature in research

How to Write Review of Related Literature (RRL) in Research

how to write related studies in research paper

A review of related literature (a.k.a RRL in research) is a comprehensive review of the existing literature pertaining to a specific topic or research question. An effective review provides the reader with an organized analysis and synthesis of the existing knowledge about a subject. With the increasing amount of new information being disseminated every day, conducting a review of related literature is becoming more difficult and the purpose of review of related literature is clearer than ever.  

All new knowledge is necessarily based on previously known information, and every new scientific study must be conducted and reported in the context of previous studies. This makes a review of related literature essential for research, and although it may be tedious work at times , most researchers will complete many such reviews of varying depths during their career. So, why exactly is a review of related literature important?    

Table of Contents

Why a review of related literature in research is important  

Before thinking how to do reviews of related literature , it is necessary to understand its importance. Although the purpose of a review of related literature varies depending on the discipline and how it will be used, its importance is never in question. Here are some ways in which a review can be crucial.  

  • Identify gaps in the knowledge – This is the primary purpose of a review of related literature (often called RRL in research ). To create new knowledge, you must first determine what knowledge may be missing. This also helps to identify the scope of your study.  
  • Avoid duplication of research efforts – Not only will a review of related literature indicate gaps in the existing research, but it will also lead you away from duplicating research that has already been done and thus save precious resources.  
  • Provide an overview of disparate and interdisciplinary research areas – Researchers cannot possibly know everything related to their disciplines. Therefore, it is very helpful to have access to a review of related literature already written and published.  
  • Highlight researcher’s familiarity with their topic 1  – A strong review of related literature in a study strengthens readers’ confidence in that study and that researcher.

how to write related studies in research paper

Tips on how to write a review of related literature in research

Given that you will probably need to produce a number of these at some point, here are a few general tips on how to write an effective review of related literature 2 .

  • Define your topic, audience, and purpose: You will be spending a lot of time with this review, so choose a topic that is interesting to you. While deciding what to write in a review of related literature , think about who you expect to read the review – researchers in your discipline, other scientists, the general public – and tailor the language to the audience. Also, think about the purpose of your review of related literature .  
  • Conduct a comprehensive literature search: While writing your review of related literature , emphasize more recent works but don’t forget to include some older publications as well. Cast a wide net, as you may find some interesting and relevant literature in unexpected databases or library corners. Don’t forget to search for recent conference papers.
  • Review the identified articles and take notes: It is a good idea to take notes in a way such that individual items in your notes can be moved around when you organize them. For example, index cards are great tools for this. Write each individual idea on a separate card along with the source. The cards can then be easily grouped and organized.  
  • Determine how to organize your review: A review of related literature should not be merely a listing of descriptions. It should be organized by some criterion, such as chronologically or thematically.  
  • Be critical and objective: Don’t just report the findings of other studies in your review of related literature . Challenge the methodology, find errors in the analysis, question the conclusions. Use what you find to improve your research. However, do not insert your opinions into the review of related literature. Remain objective and open-minded.  
  • Structure your review logically: Guide the reader through the information. The structure will depend on the function of the review of related literature. Creating an outline prior to writing the RRL in research is a good way to ensure the presented information flows well.  

As you read more extensively in your discipline, you will notice that the review of related literature appears in various forms in different places. For example, when you read an article about an experimental study, you will typically see a literature review or a RRL in research , in the introduction that includes brief descriptions of similar studies. In longer research studies and dissertations, especially in the social sciences, the review of related literature will typically be a separate chapter and include more information on methodologies and theory building. In addition, stand-alone review articles will be published that are extremely useful to researchers.  

The review of relevant literature or often abbreviated as, RRL in research , is an important communication tool that can be used in many forms for many purposes. It is a tool that all researchers should befriend.  

  • University of North Carolina at Chapel Hill Writing Center. Literature Reviews.  https://writingcenter.unc.edu/tips-and-tools/literature-reviews/  [Accessed September 8, 2022]
  • Pautasso M. Ten simple rules for writing a literature review. PLoS Comput Biol. 2013, 9. doi: 10.1371/journal.pcbi.1003149.

Q:  Is research complete without a review of related literature?

A research project is usually considered incomplete without a proper review of related literature. The review of related literature is a crucial component of any research project as it provides context for the research question, identifies gaps in existing literature, and ensures novelty by avoiding duplication. It also helps inform research design and supports arguments, highlights the significance of a study, and demonstrates your knowledge an expertise.

Q: What is difference between RRL and RRS?

The key difference between an RRL and an RRS lies in their focus and scope. An RRL or review of related literature examines a broad range of literature, including theoretical frameworks, concepts, and empirical studies, to establish the context and significance of the research topic. On the other hand, an RRS or review of research studies specifically focuses on analyzing and summarizing previous research studies within a specific research domain to gain insights into methodologies, findings, and gaps in the existing body of knowledge. While there may be some overlap between the two, they serve distinct purposes and cover different aspects of the research process.

Q: Does review of related literature improve accuracy and validity of research?

Yes, a comprehensive review of related literature (RRL) plays a vital role in improving the accuracy and validity of research. It helps authors gain a deeper understanding and offers different perspectives on the research topic. RRL can help you identify research gaps, dictate the selection of appropriate research methodologies, enhance theoretical frameworks, avoid biases and errors, and even provide support for research design and interpretation. By building upon and critically engaging with existing related literature, researchers can ensure their work is rigorous, reliable, and contributes meaningfully to their field of study.

R Discovery is a literature search and research reading platform that accelerates your research discovery journey by keeping you updated on the latest, most relevant scholarly content. With 250M+ research articles sourced from trusted aggregators like CrossRef, Unpaywall, PubMed, PubMed Central, Open Alex and top publishing houses like Springer Nature, JAMA, IOP, Taylor & Francis, NEJM, BMJ, Karger, SAGE, Emerald Publishing and more, R Discovery puts a world of research at your fingertips.  

Try R Discovery Prime FREE for 1 week or upgrade at just US$72 a year to access premium features that let you listen to research on the go, read in your language, collaborate with peers, auto sync with reference managers, and much more. Choose a simpler, smarter way to find and read research – Download the app and start your free 7-day trial today !  

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