What should a literature review consist of




















Integrative Review Considered a form of research that reviews, critiques, and synthesizes representative literature on a topic in an integrated way such that new frameworks and perspectives on the topic are generated. The body of literature includes all studies that address related or identical hypotheses or research problems.

A well-done integrative review meets the same standards as primary research in regard to clarity, rigor, and replication. This is the most common form of review in the social sciences.

Historical Review Few things rest in isolation from historical precedent. Historical literature reviews focus on examining research throughout a period of time, often starting with the first time an issue, concept, theory, phenomena emerged in the literature, then tracing its evolution within the scholarship of a discipline. The purpose is to place research in a historical context to show familiarity with state-of-the-art developments and to identify the likely directions for future research.

Methodological Review A review does not always focus on what someone said [findings], but how they came about saying what they say [method of analysis]. Reviewing methods of analysis provides a framework of understanding at different levels [i. This approach helps highlight ethical issues which you should be aware of and consider as you go through your own study. Systematic Review This form consists of an overview of existing evidence pertinent to a clearly formulated research question, which uses pre-specified and standardized methods to identify and critically appraise relevant research, and to collect, report, and analyze data from the studies that are included in the review.

The goal is to deliberately document, critically evaluate, and summarize scientifically all of the research about a clearly defined research problem. Typically it focuses on a very specific empirical question, often posed in a cause-and-effect form, such as "To what extent does A contribute to B? Theoretical Review The purpose of this form is to examine the corpus of theory that has accumulated in regard to an issue, concept, theory, phenomena.

The theoretical literature review helps to establish what theories already exist, the relationships between them, to what degree the existing theories have been investigated, and to develop new hypotheses to be tested. Often this form is used to help establish a lack of appropriate theories or reveal that current theories are inadequate for explaining new or emerging research problems. The unit of analysis can focus on a theoretical concept or a whole theory or framework.

Baumeister, Roy F. Systematic Approaches to a Successful Literature Review. Thinking About Your Literature Review. The structure of a literature review should include the following :.

The critical evaluation of each work should consider :. Development of the Literature Review. Four Stages 1. Problem formulation -- which topic or field is being examined and what are its component issues? Literature search -- finding materials relevant to the subject being explored. Data evaluation -- determining which literature makes a significant contribution to the understanding of the topic. Analysis and interpretation -- discussing the findings and conclusions of pertinent literature.

Consider the following issues before writing the literature review: Clarify If your assignment is not very specific about what form your literature review should take, seek clarification from your professor by asking these questions: 1. Roughly how many sources should I include? What types of sources should I review books, journal articles, websites; scholarly versus popular sources?

Should I summarize, synthesize, or critique sources by discussing a common theme or issue? Should I evaluate the sources? Find Models Use the exercise of reviewing the literature to examine how authors in your discipline or area of interest have composed their literature review sections.

Read them to get a sense of the types of themes you might want to look for in your own research or to identify ways to organize your final review. The bibliography or reference section of sources you've already read are also excellent entry points into your own research. Narrow the Topic The narrower your topic, the easier it will be to limit the number of sources you need to read in order to obtain a good survey of relevant resources.

Your professor will probably not expect you to read everything that's available about the topic, but you'll make your job easier if you first limit scope of the research problem.

A good strategy is to begin by searching the USC Libraries Catalog for books about the topic and review the table of contents for chapters that focuses on specific issues. You can also review the indexes of books to find references to specific issues that can serve as the focus of your research.

For example, a book surveying the history of the Israeli-Palestinian conflict may include a chapter on the role Egypt has played in mediating the conflict, or look in the index for the pages where Egypt is mentioned in the text.

Consider Whether Your Sources are Current Some disciplines require that you use information that is as current as possible. This is particularly true in disciplines in medicine and the sciences where research conducted becomes obsolete very quickly as new discoveries are made.

However, when writing a review in the social sciences, a survey of the history of the literature may be required. In other words, a complete understanding the research problem requires you to deliberately examine how knowledge and perspectives have changed over time.

Sort through other current bibliographies or literature reviews in the field to get a sense of what your discipline expects. It differs with respect to its purpose, audience, and discipline. Ideally, a literature review written for a dissertation or thesis can be constructed into a full length chapter of 20 pages.

You may be tempted to save time by restricting your review to the last decade, but this can be a critical failure point. The purpose of writing a literature review is to establish your authority in your research. Without that established credibility, your research findings are dismissed as nothing but your opinions founded on some basic methodologies.

To write a good scientific literature review , you have to begin with a clear understanding of the role it plays in executing a substantive piece of academic research:. What you include in each depends on the objective of your 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. Example of a paragraph in a literature review Body image issues have been widely associated with social media usage, particularly in young women.

The relation between media depictions and body image concerns is well-established; a meta-analysis by Grabe, Ward and Hyde concluded that exposure to mass media is linked to body image dissatisfaction among women. However, in an era of rapidly changing digital technologies, the mass media paradigm is no longer adequate for understanding how people engage with images, and the findings of older studies like this one may not be generalizable to younger generations.

In light of this changing landscape, researchers have become increasingly interested in the specific effects of social media. Perloff theorizes that the interactive aspects of social media may influence its impact on body image, and mentions that young women are among the most active social media users. Across these studies, there is consistent evidence that body image issues are influenced not by social media usage in general, but by engagement with the visual and interactive aspects of these platforms.

Nonetheless, there is a lack of robust research on more highly visual social media HVSM such as Instagram and Snapchat that have gained more recent popularity among younger generations. In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance. Not a language expert? This article has been adapted into lecture slides that you can use to teach your students about writing a literature review.

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:. 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.

Have a language expert improve your writing. Check your paper for plagiarism in 10 minutes. Do the check. Generate your APA citations for free! Describes the relationship of each source to the others that you have selected Identifies new ways to interpret, and shed light on any gaps in, previous research Points the way forward for further research. Components of the literature review The literature review should include the following: Objective of the literature review Overview of the subject under consideration.

Clear categorization of sources selected into those in support of your particular position, those opposed, and those offering completely different arguments. Discussion of both the distinctiveness of each source and its similarities with the others. Steps in the literature review process Preparation of a literature review may be divided into four steps: Define your subject and the scope of the review. Search the library catalogue, subject specific databases and other search tools to find sources that are relevant to your topic.

Read and evaluate the sources and to determine their suitability to the understanding of topic at hand see the Evaluating sources section. Analyse, interpret and discuss the findings and conclusions of the sources you selected.



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