Exploring differential item functioning in the SF-36 by demographic, clinical, psychological and social factors in an osteoarthritis population [PDF]
The SF-36 is a very commonly used generic measure of health outcome in osteoarthritis (OA). An important, but frequently overlooked, aspect of validating health outcome measures is to establish if items work in the same way across subgroup of a ...
Johnston, Marie +2 more
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A Penalty Approach to Differential Item Functioning in Rasch Models [PDF]
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 ...
Tutz, Gerhard, Schauberger, Gunther
core +1 more source
Detecting Differential Item and Step Functioning with Rating Scale and Partial Credit Trees [PDF]
Several statistical procedures have been suggested for detecting differential item functioning (DIF) and differential step functioning (DSF) in polytomous items.
Zeileis, Achim +2 more
core +1 more source
A Simulation and Empirical Study of Differential Test Functioning (DTF)
Detecting and understanding DTF is very important under various DIF conditions. In this study, the performance of DTF, DRF, SIBTEST, and CSIBTEST approaches in detecting DIF effects was investigated using a simulation study and a real dataset.
Güler Yavuz Temel
doaj +1 more source
Differential Item Functioning and Item Bias: Critical Considerations in Test Fairness
In recent years, policy makers, administrators, and test developers in the field of second language assessment have paid considerable attention to the issue of test fairness.
Michael Perrone
doaj +1 more source
In the social sciences, the performance of two groups is frequently compared based on a cognitive test involving binary items. Item response models are often utilized for comparing the two groups.
Alexander Robitzsch
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Differential item functioning analysis of a high stake test in terms of statistical regions of Turkey [PDF]
Large scale assessment is conducted at different class levels for various purposes such as identifying student success in education, observing the impacts of educational reforms on student achievement, assessment, selection, and placement. It is expected
Özkan Y.Ö. +3 more
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Statistical and extra-statistical considerations in differential item functioning analyses
This article briefly describes the main procedures for performing differential item functioning (DIF) analyses and points out some of the statistical and extra-statistical implications of these methods.
G. K. Huysamen
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Evaluating the Magnitude of Differential Item Functioning in Polytomous Items [PDF]
Several recent studies have investigated the application of statistical inference procedures to the analysis of differential item functioning (DIF) in polytomous test items that are scored on an ordinal scale. Mantel’s extension of the Mantel-Haenszel test is one of several hypothesis-testing methods for this purpose.
Rebecca Zwick, Dorothy T. Thayer
openaire +1 more source
A new method for detecting differential item functioning in the Rasch model [PDF]
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.
Zeileis, Achim +2 more
core +1 more source

