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Detecting Differential Item Functioning Using Logistic Regression Procedures
Author(s) -
Swaminathan Hariharan,
Rogers H. Jane
Publication year - 1990
Publication title -
journal of educational measurement
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.917
H-Index - 47
eISSN - 1745-3984
pISSN - 0022-0655
DOI - 10.1111/j.1745-3984.1990.tb00754.x
Subject(s) - differential item functioning , logistic regression , statistics , statistic , mathematics , econometrics , regression analysis , differential (mechanical device) , item response theory , regression , psychology , psychometrics , engineering , aerospace engineering
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.