UNRELIABILITY OF DIFFERENCE SCORES - PARADOX FOR MEASUREMENT OF CHANGE
UNRELIABILITY OF DIFFERENCE SCORES - PARADOX FOR MEASUREMENT OF CHANGE
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DOI：
10.1037/h0076158
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发表时间：
1975-01-01
影响因子：
22.4
通讯作者：
WOODWARD, JA
中科院分区：
文献类型：
--
作者：
OVERALL, JE;WOODWARD, JA
认为，使用差异分数来衡量实验研究的变化往往是错误的理由，测量误差是添加剂。有人建议，在研究中的实验治疗组之间的差异，由于计算差异分数的可靠性损失是不是一个有效的关注，因为显着性检验的权力是最大的差异分数的可靠性为零时。（PsycInfo数据库记录（c）2016阿帕，保留所有权利）
Argues that the use of difference scores to measure change in experimental research has often been faulted on the grounds that errors of measurement are additive. It is suggested that in research concerned with differences between experimental treatment groups, the loss in reliability due to calculation of difference scores is not a valid concern because the power of tests of significance is maximum when the reliability of the difference scores is zero.(PsycINFO Database Record (c) 2016 APA, all rights reserved)