期刊名称：Tutorials in Quantitative Methods for Psychology
电子版ISSN：1913-4126
出版年度：2020
卷号：16
期号：4
页码：418-421
DOI：10.20982/tqmp.16.4.p418
出版社：Université de Montréal
摘要：In this document, I demonstrate an approximate distribution of Cohen's d_p in within-subject designs. The distribution follows a noncentral t distribution with degrees of freedom depending on the correlation between the measures. The result generalizes the distribution of Cohen's d_p to both between-subject and single-group designs, yielding a flexible and integrative measure for comparing effect sizes across different study designs.
关键词：Standardized mean difference; Cohen's d_p; noncentral t distribution
