Affiliation:
1. Illinois Institute of Technology
Abstract
Previous research has recommended several measures of effect size for studies with repeated measurements in both treatment and control groups. Three alternate effect size estimates were compared in terms of bias, precision, and robustness to heterogeneity of variance. The results favored an effect size based on the mean pre-post change in the treatment group minus the mean pre-post change in the control group, divided by the pooled pretest standard deviation.
Subject
Management of Technology and Innovation,Strategy and Management,General Decision Sciences
Cited by
1541 articles.
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