The purpose of this study is to examine the psychometric quality of the Teachers' Sense of Efficacy Scale (TSES) with data collected from 554 teachers in a U.S. Midwestern state. The many-facet Rasch model was used to examine several potential contextual influences (years of teaching experience, school context, and levels of emotional exhaustion)…

A historical perspective on and substantive review of the concept of invariance are provided. Progress made toward solving measurement problems related to invariance is also assessed. Two major classes of invariant measurement are described: (1) sample-invariant item calibration; and (2) item-invariant measurement of individuals. The work of S. S.…

Recent developments in dichotomous factor analysis based on multidimensional item response models (Bock and Aitkin, 1981; Muthen, 1978) provide an effective method for exploring the dimensionality of questionnaire items. Implemented in the TESTFACT program, this "full information" item factor analysis accounts not only for the pairwise…

Whether judges on bias review committees can identify test items that function differently for black and white examinees was studied. Judges (n=42) on three bias review committees were asked to examine a set of items and predict differential item functioning (DIF) without empirical data. Test items from teacher certification tests in the content…

The agreement between Mantel-Haenszel and Rasch procedures for identifying differential item functioning (DIF) on teacher certification tests was studied. Two specific research questions were addressed: (1) whether the Mantel-Haenszel and Rasch procedures identify the same items as functioning differently; and (2) how consistently each method…