COMPARING THE RELIABILITY OF DIFFERENCE SCORES AND RESIDUALS IN ANALYSIS OF COVARIANCE

被引：28

作者：

MALGADY, RG ^{[1
]}

COLONMALGADY, G ^{[1
]}

机构：

[1] TERENCE CARDINAL COOKE HLTH CARE CTR,DEPT QUAL ASSURANCE & RISK MANAGEMENT,NEW YORK,NY

来源：

EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT | 1991年 / 51卷 / 04期

关键词：

D O I：

10.1177/001316449105100401

中图分类号：

G44 [教育心理学];

学科分类号：

0402 ; 040202 ;

摘要：

In pretest-posttest designs, residual scores created in the analysis of covariance commonly are preferred to difference scores because the latter suffer from reliability problems. This paper develops the reliability of residuals adjusted for a single covariate for comparison to the reliability of difference scores. Comparisons reveal that little is gained by analysis of covariance, which also suffers from reliability problems as the pretest and posttest reliabilities decrease and as their intercorrelation increases.

引用

页码：803 / 807

页数：5