A measure of effect size for experimental designs with heterogeneous variances

被引：0

作者：

Johnston, JE ^{[1
]}

Berry, KJ ^{[1
]}

Mielke, PW ^{[1
]}

机构：

[1] Colorado State Univ, Dept Sociol, Ft Collins, CO 80523 USA

来源：

PERCEPTUAL AND MOTOR SKILLS | 2004年 / 98卷 / 01期

关键词：

D O I：

暂无

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

A recent trend in the psychological literature has been to include measures of effect size when reporting probability values. The several measures of effect size associated with the Student t test for two independent samples are appropriate only when the variances are homogeneous. In this paper, commonly used measures of effect size are considered and compared, using four data sets. A chance-corrected measure of effect size is provided for two or more treatment groups characterized by either homogeneous or heterogeneous variances.

引用

页码：3 / 18

页数：16

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