Differential item functioning impact in a modified version of the Roland–Morris Disability Questionnaire

Author: Crane Paul   Cetin Karynsa   Cook Karon   Johnson Kurt   Deyo Richard   Amtmann Dagmar  

Publisher: Springer Publishing Company

ISSN: 0962-9343

Source: Quality of Life Research, Vol.16, Iss.6, 2007-08, pp. : 981-990

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