Psychometric problems with the method of correlated vectors applied to item scores (including some nonsensical results)

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• 作者：Jelte M. Wicherts
• 关键词：Group differences ; Race differences ; Psychometrics ; Differential Item Functioning ; Measurement invariance
• 刊名：Intelligence
• 出版年：2017
• 出版时间：January-February 2017
• 年：2017
• 卷：60
• 期：Complete
• 页码：26-38
• 全文大小：1382 K
• 卷排序：60

文摘

The method of correlated vectors (MCV) is often used to study group differences in performance on cognitive test items It is shown here that this method does not convey much information about the role of g in the ethnic groups being compared MCV was applied to scenarios in which cognitive tests were replaced by measures of mood or personality in one of the two groups in the analysis MCV incorrectly suggested group differences in g (a Jensen Effect) even though group differences could not reasonably be on g