Significance Test in Meta-Analysis Approach
Abstract
Meta-analysis, a statistical procedure that integrates the results of several independent studies, plays a central role in statistical research, and a very important task in research problems and statistical significance tests . This paper discusses these principles, along with the practical steps in performing meta-analysis.it describes the issue of    meta-analysis, explains what    meta-analysis is, how it is done and how it can be interpreted. Some related problems such as statistical significance, effect size and power analysis are described. Examples of implementation on theoretical data would be carried .Results , conclusions, recommendations on the use of    meta-analysis would be summarized.
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