Articlegreen2003

Meta-Analysis and Power: Some Suggestions for the Use of Power in Research Synthesis

Steven Muncer · Mark A. Craigie · Joni Holmes

29 citations0/0 files storedUnderstanding Statistics

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Meta-analysis and systematic reviews Statistical Methods in Epidemiology Psychology Research and Bibliometrics

Abstract

The importance of statistical power is under recognized both in single study research and meta-analysis. The power of a study is the probability that it will lead to a statistically significant result. A simple method of establishing the adequacy of the power of meta-analysis is suggested and examples from 2 meta-analytic studies that may have produced inaccurate results are provided. Suggestions are made for changes in the protocol of meta-analytic studies that highlight the importance of power analysis.

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References

1988Statistical Methods for Meta-Analysis 1975The psychology of sex differences 1996GPOWER: A general power analysis program 1904The Psychological Bulletin 1994Gender differences in personality: A meta-analysis.1999Gender differences in self-esteem: A meta-analysis.1997Discrepancies between Meta-Analyses and Subsequent Large Randomized, Controlled Trials 1978The Case Against Statistical Significance Testing

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