An Investigation of the Likelihood Ratio Test for Detection of Differential Item Functioning.

Cohen, Allan S.; And Others

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Peer reviewed

ERIC Number: EJ533510

Record Type: Journal

Publication Date: 1996

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ISSN: ISSN-0146-6216

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An Investigation of the Likelihood Ratio Test for Detection of Differential Item Functioning.

Cohen, Allan S.; And Others

Applied Psychological Measurement, v20 n1 p15-26 Mar 1996

Type I error rates for the likelihood ratio test for detecting differential item functioning (DIF) were investigated using Monte Carlo simulations. Type I error rates for the two-parameter model were within theoretically expected values at each alpha level, but those for the three-parameter model were not. (SLD)

Descriptors: Identification, Item Bias, Item Response Theory, Maximum Likelihood Statistics, Monte Carlo Methods, Simulation, Test Items

Publication Type: Reports - Evaluative; Speeches/Meeting Papers; Journal Articles

Education Level: N/A

Audience: N/A

Language: English

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