TY - JOUR
AU - Morris, Scott B.
AB - 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.
TI - Estimating Effect Sizes From Pretest-Posttest-Control Group Designs
JF - Organizational Research Methods
DO - 10.1177/1094428106291059
DA - 2008-04-01
UR - https://www.deepdyve.com/lp/sage/estimating-effect-sizes-from-pretest-posttest-control-group-designs-EVsB8PMntk
SP - 364
EP - 386
VL - 11
IS - 2
DP - DeepDyve
ER -