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A Generalized Logistic Regression Procedure to Detect Differential Item Functioning among Multiple Groups

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Bibliographic Details
Title: A Generalized Logistic Regression Procedure to Detect Differential Item Functioning among Multiple Groups
Language: English
Authors: Magis, David, Raiche, Gilles, Beland, Sebastien, Gerard, Paul
Source: International Journal of Testing. 2011 11(4):365-386.
Availability: Routledge. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site: http://www.tandf.co.uk/journals
Peer Reviewed: Y
Page Count: 22
Publication Date: 2011
Document Type: Journal Articles
Reports - Descriptive
Education Level: Higher Education
Descriptors: Language Skills, Identification, Foreign Countries, Evaluation Methods, Comparative Analysis, English (Second Language), French, Models, Tests, Computation, Test Bias, College Students, Colleges
Geographic Terms: Canada
DOI: 10.1080/15305058.2011.602810
ISSN: 1530-5058
Abstract: 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, nonuniform 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. (Contains 5 tables and 2 figures.)
Abstractor: As Provided
Number of References: 52
Entry Date: 2011
Accession Number: EJ946932
Database: ERIC
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Description
Abstract: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, nonuniform 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. (Contains 5 tables and 2 figures.)
ISSN:1530-5058
DOI:10.1080/15305058.2011.602810