Differential Item Functioning (DIF) in composite health measurement scale: Recommendations for characterizing DIF with meaningful consequences within the Rasch model framework

Rouquette, Alexandra; Hardouin, Jean-Benoît; Vanhaesebrouck, Alexis; Sebille, Véronique; Coste, Joël

doi:10.1371/journal.pone.0215073

Public

Differential Item Functioning (DIF) in composite health measurement scale: Recommendations for characterizing DIF with meaningful consequences within the Rasch model framework

Published in PLoS ONE • Apr 9, 2019

Authors:

Alexandra Rouquette

Jean-Benoît Hardouin

Alexis Vanhaesebrouck

Abstract

OBJECTIVE: The aims were to review practices concerning Differential Item Functioning (DIF) detection in composite measurement scales, particularly those used in health research, and to provide guidance on how to proceed if statistically significant DIF is detected. METHODS: This work specifically a...

Subject

Rasch model

Differential item functioning

Scale (ratio)

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