Chapter 2 Literature reviewwwwwww OK.pptx

Lit

1. Literature Review Chapter 2

2. Concept of Literature Review A literature review is a self-contained unit in a study which analyses critically a segment of published body of knowledge through summary, classification and comparison of prior research studies and theoretical articles.

3. Importance of Literature Review Identifying research topic: finds out the untouched area or areas of contradiction Developing ideas to collect data: gives idea that how similar nature of researches was collected data Knowing methods of data analysis: gives idea of most permanent tool for analysis in given set of data Know the research design: Gets idea about appropriate design Assessing the success of various research design: evaluate the result of various research designs that help to find out success of various research designs.

4. Purpose and Functions of Literature Review To know the research conducted in the chosen field To identify the gap To develop theoretical framework To develop research design To update on current issues To know the methods of data analysis To know the research design To assess the success of various research designs

5. Sources of Literature Review Books Research articles Abstracts Reports Dissertation Directories The internet

6. Phases in Literature Review Identifying the relevant sources: helps to know the source of appropriate materials Obtaining literatures: Helps to get the literatures available Reading: researcher should select materials, find the related facts and note down the required information. Extracting the relevant information: Taking information that are useful to the study Evaluating the contents of the literatures: Materials collected are to be evaluated so as to find out the prominent materials Writing up the literature review: Managing the materials in proper format.  

7. Evaluating the Literature Accuracy: Check the accuracy based on the nature of the study Author: Prominent author or not Publisher : Prominent publisher or not Scope: Scope of the previous study and your study differs or not Style Use of methodology: Illustrations , tables and diagrams Update information.

8. Qualities of a Good Literature Review Fact information: should have correct name of author, date of publication and the findings. Note: write down the objectives and the major findings Evidence : Must be supported by evidence Evaluation: evaluate every material Use of appropriate words: Reference list: must contain the reference list covering all used materials

9. Meta Analysis The term Meta Analysis refers to an analysis of analysis. Generally in traditional literature review researchers searched information from variety of sources including in-house and out-house documents (internet, libraries),, etc.

10. Purposes of Meta Analysis To establish statistical significance with studies that have conflicting results. To develop a more correct estimate of effect magnitude. To provide a more complex analysis related to harm, safety, benefits, etc. To examine sub-groups with individual members that are not statistically significant.

11. Process/Steps in Meta Analysis Identifying the relevant variables: find out the variables that are to be analyzed under study Locating the relevant research: locate all the literature whether they are in-house or out-house Conducting meta analysis Comparing study: can compare with the methods and findings of different studies Combining studies: Related studies are to be combined and draw the results.