Article (Scientific journals)
A generalized logistic regression procedure to detect differential item functioning among multiple groups
Magis, David; Raîche, Gilles; Béland, Sébastien et al.
2011In International Journal of Testing, 11, p. 365-386
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Keywords :
Differential item functioning; Multiple groups; Logistic regression
Abstract :
[en] We present an extension of the logistic regression procedure to identify dichotomous differential item functioning (DIF) in the presence of more than two groups of respondents. Starting from the usual framework of a single focal group, we propose a general approach to estimate the item response functions in each group and to test for the presence of uniform DIF, non uniform DIF, or both. This generalized procedure is compared to other existing DIF methods for multiple groups with a real data set on language skill assessment. Emphasis is put on the flexibility, completeness and computational easiness of the generalized method.
Disciplines :
Mathematics
Author, co-author :
Magis, David ;  Université de Liège - ULiège > Département de mathématique > Statistique mathématique
Raîche, Gilles
Béland, Sébastien
Gérard, Paul
Language :
English
Title :
A generalized logistic regression procedure to detect differential item functioning among multiple groups
Publication date :
2011
Journal title :
International Journal of Testing
ISSN :
1530-5058
eISSN :
1532-7574
Publisher :
Lawrence Erlbaum Associates, Inc.
Volume :
11
Pages :
365-386
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 June 2011

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