Examining Differential Item Functioning Due to Item Difficulty and Alternative Attractiveness.

Westers, Paul; Kelderman, Henk

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Peer reviewed

ERIC Number: EJ446677

Record Type: Journal

Publication Date: 1992

Pages: N/A

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ISSN: ISSN-0033-3123

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Examining Differential Item Functioning Due to Item Difficulty and Alternative Attractiveness.

Westers, Paul; Kelderman, Henk

Psychometrika, v57 n1 p107-18 Mar 1992

A method for analyzing test-item responses is proposed to examine differential item functioning (DIF) in multiple-choice items within the latent class framework. Different models for detection of DIF are formulated, defining the subgroup as a latent variable. An efficient estimation method is described and illustrated. (SLD)

Descriptors: Chi Square, Difficulty Level, Educational Testing, Equations (Mathematics), Estimation (Mathematics), Goodness of Fit, Item Bias, Item Response Theory, Mathematical Models, Multiple Choice Tests, Psychological Testing, Test Items

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

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Authoring Institution: N/A

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Author Affiliations: N/A