Differential item functioning (DIF) in the EORTC QLQ-C30: a comparison of baseline, on-treatment and off-treatment data

Abstract

Introduction Differential item functioning (DIF) analyses can be used to explore translation, cultural, gender or other differences in the performance of quality of life (QoL) instruments. These analyses are commonly performed using “baseline” or pretreatment data. We previously reported DIF analyses to examine the pattern of item responses for translations… (More)
DOI: 10.1007/s11136-009-9453-7

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Cite this paper

@article{Scott2009DifferentialIF, title={Differential item functioning (DIF) in the EORTC QLQ-C30: a comparison of baseline, on-treatment and off-treatment data}, author={Neil W. Scott and Peter M. Fayers and Neil K Aaronson and Andrew Bottomley and Alexander de Graeff and Mogens Groenvold and Chad M M Gundy and Michael Koller and Morten Petersen and Mirjam A. G. Sprangers}, journal={Quality of Life Research}, year={2009}, volume={18}, pages={381-388} }