Literature Review

Definition

A literature review surveys books, critical articles, and other sources appropriate to a specific topic, space of research, or theory, and by, provides a sketch, summing up, and significant analysis of those works in relevance to the research drawback being investigated. Literature reviews square measure designed to supply an outline of sources you’ve got explored while researching a specific topic and to demonstrate to your readers how your research fits among a bigger field of study.

Importance of Literature Review

A literature review might carry with it merely an outline of key sources, however within the social sciences, a literature review typically has AN structure pattern and combines each outline and synthesis, usually among specific abstract classes. An outline may be a recap of the necessary info of the supply, however, synthesis may be a re-organization, or a shuffle, of that info in an exceedingly means that informs however you’re about to investigate a research drawback. The analytical options of a literature review might:

• Give a new interpretation of recent material or mix new with recent interpretations,

• Trace the intellectual progression of the sphere, as well as major debates,

• Depending on matters, judge the sources and advise the reader on the foremost pertinent or         relevant research, or

•  Usually within the conclusion of a literature review, determine wherever gaps exist in how a retardant has been researched thus far.

The purpose of a literature review is to:

    •  Place every adds the context of its contribution to understanding the research drawback being studied.

    •  Describe the link of every work to the others into consideration.

    •  Identify new ways to interpret previous research.

    •  Disclose any gaps that exist within the literature.

    •  Resolve conflicts amongst actually conflicting earlier studies.

    •  Identify areas of previous scholarship to forestall duplication of effort.

    •  Point the means in fulfilling a desire for extra research.

    •  Locate your own research in the context of existing literature.

Types of Literature Review

It is necessary to think about data in an exceedingly given field consisting of 3 layers. First, there square measure the first studies that researchers conduct and publish. Second square measures the reviews of these studies that summarize and supply new interpretations engineered from and sometimes extending on the far side of the first studies. Third, their square measure the perceptions, conclusions, opinions, and interpretations that square measure shared informally that become a part of the content of fields.

In composing a literature review, it’s necessary to notice that it’s usually this third layer of data that is cited as “true” despite the fact that it usually has solely a loose relationship to the first studies and secondary literature reviews. Given this, whereas literature reviews square measure designed to supply an outline and synthesis of pertinent sources you’ve got explored, the square measure variety of approaches you’ll adopt relies upon the kind of research underpinning your study.

Types of Literature Reviews

1. Argumentative Review

This form examines literature by selection so as to support or refute an argument, deeply embedded assumptions or philosophical drawback already established within the literature. the aim is to develop a body of literature that establishes an investor viewpoint. Given the value-laden nature of some scientific research [e.g., academic reform; immigration control], disputative approaches to analyzing the literature may be a legitimate and necessary sort of discourse. However, note that they will conjointly introduce issues of bias after they square measure wont to create outline claims of the kind found in systematic reviews.

2. Integrative Review

Considered a sort of research that reviews, critiques, ANd synthesizes representative literature on a subject in an integrated means specified new frameworks and views on the subject square measure generated. The body of literature includes all studies that address connected or identical hypotheses or research issues. A cooked integrative review meets constant standards as primary research in reference to clarity, rigor, and replication. this can be the foremost common sort of review within the social sciences.

3. Historical Review

Few things rest in isolation from historical precedent. Historical literature reviews specialize in examining research throughout an amount of your time, usually beginning with the primary time a difficulty, concept, theory, phenomenon emerged within the literature, then tracing its evolution among the scholarship of a discipline. the aim is to position research in an exceedingly historical context to indicate familiarity with progressive developments and to spot the probable directions for future research.

4. Methodological Review

A review doesn’t invariably specialize in what somebody aforementioned [findings], however, however, they occurred in oral communication what they assert [method of analysis]. Reviewing strategies of research provides a framework of understanding at completely different levels [i.e. those of theory, substantive fields, research approaches, and knowledge assortment and analysis techniques], however, researchers draw upon a large sort of knowledge starting from the abstract level to sensitive documents to be used in munition within the areas of metaphysics and philosophy thought, quantitative and qualitative integration, sampling, interviewing, knowledge assortment, and knowledge analysis. This approach helps highlight moral problems that you ought to remember and contemplate as you undergo your own study.

5. Systematic Review

This form consists of an outline of existing proof pertinent to a clearly developed research question, that uses pre-specified and standardized strategies to spot and critically appraise relevant analysis, and gather, report, and analyze knowledge from the studies that square measure enclosed within the review. The goal is to deliberately document, critically judge, and summarize scientifically all of the research with a couple of clearly outlined analysis drawbacks. usually, it focuses on a really specific empirical question, usually display in an exceedingly cause-and-effect kind, like “To what extent will A contribute to B?” this sort of literature review is primarily applied to examining previous research studies in clinical medicine and allied health fields, however, it’s more and more being employed within the social sciences.

 6. Theoretical Review

The purpose of this kind is to look at the corpus of theory that has accumulated in reference to a difficulty, concept, theory, or phenomenon. The theoretical literature review helps to ascertain what theories exist already, the relationships between them, to what degree the prevailing theories are investigated, and to develop new hypotheses to be tested. usually, this kind is employed to assist establish an absence of acceptable theories or reveal that current theories area unit inadequate for explaining new or rising research issues. The unit of study will specialize in a theoretical thought or a full theory or framework.