LOGISTIC DISCRIMINANT FUNCTION-ANALYSIS FOR DIF IDENTIFICATION OF POLYTOMOUSLY SCORED ITEMS

被引:80
作者
MILLER, TR
SPRAY, JA
机构
关键词
D O I
10.1111/j.1745-3984.1993.tb01069.x
中图分类号
G44 [教育心理学];
学科分类号
0402 ; 040202 ;
摘要
The purpose of this article is to present logistic discriminant function analysis as a means of differential item functioning (DIF) identification of items that are polytomously scored. The procedure is presented with examples of a DIF analysis using items from a 27-item mathematics test which includes six open-ended response items scored polytomously. The results show that the logistic discriminant function procedure is ideally suited for DIF identification on nondichotomously scored test items. It is simpler and more practical than polytomous extensions of the logistic regression DIF procedure and appears to be more powerful than a generalized Mantel-Haenszel procedure.
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页码:107 / 122
页数:16
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