Power Analysis for Categorical Moderator Models of Effect Size

  • Terri D. Pigott
Part of the Statistics for Social and Behavioral Sciences book series (SSBS)


This chapter provides methods for computing power with moderator models of effect size. The models discussed are analogues to one-way ANOVA models for effect sizes. Examples are provided for both fixed and random effects categorical moderator models. The power for meta-regression models requires knowledge of the values of the predictors for each study in the model, and is not provided here.


Random Effect Model Omnibus Test Noncentrality Parameter Random Effect Variance Individual Effect Size 
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  3. Sirin, S.R. 2005. Socioeconomic status and academic achievement: A meta-analytic review of research. Review of Educational Research 75(3): 417–453. doi: 10.3102/00346543075003417.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Terri D. Pigott
    • 1
  1. 1.School of EducationLoyola University ChicagoChicagoUSA

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