Difference Scores From the Point of View of Reliability and Repeated-Measures ANOVA
Difference Scores From the Point of View of Reliability and Repeated-Measures ANOVA
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从可靠性和重复测量方差分析的角度来看差异分数
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
B. Zumbo
中科院分区：
文献类型：
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作者：
D. Roland Thomas;B. Zumbo
在研究实践中，人们对差异分数的可靠性持怀疑态度，以至于授权机构、期刊编辑、审稿人和研究生论文委员会都强烈反对使用差异分数。这个最受诟病的指数可以用于研究变化、增长，或者在同一抽样单位上采取的两种措施之间的差异。最常见的问题是差异分数的不可靠性增加。在这篇文章中，作者从可靠性和重复测量方差分析的角度来检查差异分数。作者证明，当差异分数的重点是汇总模型的数据分析时，它们的使用不应根据可靠性进行评估，并且在研究实践中完全废除差异分数是没有道理的。
There is such doubt in research practice about the reliability of difference scores that granting agencies, journal editors, reviewers, and committees of graduate students’ theses have been known to deplore their use. This most maligned index can be used in studies of change, growth, or perhaps discrepancy between two measures taken on the same sampling unit. The most commonly stated problem with difference scores is the supposed associated increase in unreliability of difference scores. In this article, the authors examine difference scores from the point of view of reliability and repeated-measures ANOVA. The authors demonstrate that when the focus of difference scores is data analysis of aggregate models, their use should not be assessed in terms of reliability, and that the complete abolition of difference scores in research practice is unwarranted.