Scott, Neil W. and Fayers, Peter M. and Aaronson, Neil K. and Bottomley, Andrew and de Graeff, Alexander and Groenvold, Mogens and Gundy, Chad and Koller, Michael and Petersen, Morten A. and Sprangers, Mirjam A. G. (2010) Differential item functioning (DIF) analyses of health-related quality of life instruments using logistic regression. HEALTH AND QUALITY OF LIFE OUTCOMES, 8: 81. ISSN 1477-7525,
Full text not available from this repository. (Request a copy)Abstract
Background: Differential item functioning (DIF) methods can be used to determine whether different subgroups respond differently to particular items within a health-related quality of life (HRQoL) subscale, after allowing for overall subgroup differences in that scale. This article reviews issues that arise when testing for DIF in HRQoL instruments. We focus on logistic regression methods, which are often used because of their efficiency, simplicity and ease of application. Methods: A review of logistic regression DIF analyses in HRQoL was undertaken. Methodological articles from other fields and using other DIF methods were also included if considered relevant. Results: There are many competing approaches for the conduct of DIF analyses and many criteria for determining what constitutes significant DIF. DIF in short scales, as commonly found in HRQL instruments, may be more difficult to interpret. Qualitative methods may aid interpretation of such DIF analyses. Conclusions: A number of methodological choices must be made when applying logistic regression for DIF analyses, and many of these affect the results. We provide recommendations based on reviewing the current evidence. Although the focus is on logistic regression, many of our results should be applicable to DIF analyses in general. There is a need for more empirical and theoretical work in this area.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MENTAL-STATE-EXAMINATION; MANTEL-HAENSZEL PROCEDURES; CROSS-CULTURAL VALIDITY; RESPONSE THEORY; EORTC QLQ-C30; COMPARING TRANSLATIONS; MEASUREMENT INVARIANCE; DEPRESSIVE SYMPTOMS; SPANISH TRANSLATION; MEASUREMENT BIAS; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Klinische Studien |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Jul 2020 12:42 |
| Last Modified: | 15 Jul 2020 12:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24333 |
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