Detecting Differential Item Functioning Using Logistic Regression Procedures
- 1 December 1990
- journal article
- Published by Wiley in Journal of Educational Measurement
- Vol. 27 (4) , 361-370
- https://doi.org/10.1111/j.1745-3984.1990.tb00754.x
Abstract
A logistic regression model for characterizing differential item functioning (DIF) between two groups is presented. A distinction is drawn between uniform and nonuniform DIF in terms of the parameters of the model. A statistic for testing the hypothesis of no DIF is developed. Through simulation studies, it is shown that the logistic regression procedure is more powerful than the Mantel‐Haenszel procedure for detecting nonuniform DIF and as powerful in detecting uniform DIF.Keywords
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