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Differential item functioning (DIF) can lead to an unfair advantage or disadvantage for certain subgroups in educational and psychological testing. Therefore, a variety of statistical methods has been suggested for detecting DIF in the Rasch model. Most of these methods are designed for the...
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A new diagnostic tool for the identification of differential item functioning (DIF) is proposed. Classical approaches to DIF allow to consider only few subpopulations like ethnic groups when investigating if the solution of items depends on the membership to a subpopulation. We propose an...
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This article proposes a novel approach to detect differential item functioning (DIF) among dichotomously scored items. Unlike standard DIF methods that perform an item-by-item analysis, we propose the “LR lasso DIF methodâ€: logistic regression (LR) model is formulated for all item...
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Research on subjective wellbeing typically assumes that responses to survey questions are comparable across respondents and across time. However, if this assumption is violated, standard methods in empirical research may mislead. I address this concern with three contributions. First, I give a...
Persistent link: https://www.econbiz.de/10012313797
Measurement invariance is a fundamental assumption in item response theory models, where the relationship between a latent construct (ability) and observed item responses is of interest. Violation of this assumption would render the scale misinterpreted or cause systematic bias against certain...
Persistent link: https://www.econbiz.de/10011531582
Nur wenige Studien geben Aufschluss über den Gesundheitszustand der in Deutschland lebenden Migrantenbevölkerung und beschränken sich meist auf rein medizinische Kriterien. Die vorliegende Arbeit vergleicht auf Grundlage von Daten des Sozio-oekonomischen Panels (SOEP) den Gesundheitszustand...
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