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Journal Articles

Estimating Effect Sizes From Pretest-Posttest-Control Group Designs

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.

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Detail Information
Series Title
Organizational Research Methods
Call Number
-
Publisher
California : Sage Publications.,
Collation
-
Language
English
ISBN/ISSN
1094-4281
Classification
-
Content Type
-
Media Type
-
Carrier Type
-
Edition
Vol. 11, No. 2, Page 364-386
Subject(s)
Meta-analysis
effect size
repeated measures
experimental design
Specific Detail Info
-
Statement of Responsibility
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