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How meta-analysis increases statistical power

Lawrence D Cohn1, Betsy J Becker

  • 1Department of Psychology, University of Texas at El Paso, 79968-0553, USA. Lcohn@utep.edu

Psychological Methods
|November 5, 2003
PubMed
Summary

Meta-analysis boosts statistical power by reducing the standard error of the effect size, leading to narrower confidence intervals. This enhances the precision of estimated population effects and increases the likelihood of detecting true effects.

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