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) Interpretation of differential item functioning analyses using external review. EXPERT REVIEW OF PHARMACOECONOMICS & OUTCOMES RESEARCH, 10 (3). pp. 253-258. ISSN 1473-7167
Full text not available from this repository. (Request a copy)Abstract
Differential item functioning (DIF) analyses are used to determine whether certain groups respond differently to a particular item of a test or questionnaire; however, these do not explain the reasons for observed response differences. Many studies have used external reviews of items, sometimes using blinded reviewers, to help interpret these results. The authors conducted a literature review of this topic to describe the current usage of external reviews alongside DIF analyses. It concentrated on studies of health-related quality of life instruments, but studies in other fields were also considered. Relatively few examples of blinded item reviews were identified, and these were mostly from educational studies. A case study using blinded bilingual reviewers alongside translation DIF analyses of a health-related quality of life instrument is described. Future researchers should consider conducting external item reviews alongside DIF analyses.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CULTURAL-DIFFERENCES; EORTC QLQ-C30; TRANSLATION; DIF; QUESTIONNAIRE; EQUIVALENCE; INVENTORY; IDENTIFY; INDEX; BIAS; differential item functioning; EORTC QLQ-C30; health-related quality of life; literature review; qualitative analyses; translations |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Klinische Studien |
| Depositing User: | Petra Gürster |
| Date Deposited: | 16 Apr 2020 06:31 |
| Last Modified: | 16 Apr 2020 06:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24610 |
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