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Contextualizing effect sizes by examining population, study, and outcome characteristics: Extended investigation using multilevel models and mixtures, Hendricks Brown, University of South Florida

March 5, 2007
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This presentation examines the variation in impact with effect sizes by describing traditional meta-analyses and…

Issues in calculating average effect sizes in meta-analyses, Rebecca Maynard, Nianbo Dong, and Irma Perez-Johnson, University of Pennsylvania

March 5, 2007
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This session focused on the rationale for calculating average effect sizes, described which measures should be…

What are effect sizes and why we need them? Larry Hedges, Northwestern University

March 5, 2007
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Effect sizes are a type of quantitative representation of the magnitude of relations, differences, or…