Development of computerized adaptive testing (CAT) for the EORTC QLQ-C30 physical functioning dimension.
Purpose: Computerized adaptive test (CAT) methods, based on item response theory (IRT), enable a patient-reported outcome instrument to be adapted to the individual patient while maintaining direct comparability of scores. The EORTC Quality of Life Group is developing a CAT version of the widely use...
| Publicado en: | Quality of Life Research Vol. 20; no. 4; pp. 479 - 491 |
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| Autores principales: | , , , , , , , , , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
May2011
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104872517&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104872517 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09629343 GPQ jtl: Quality of Life Research issn: 09629343 maglogo: N pubinfo: dt: May2011 vid: 20 iid: 4 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104872517 NLM20972628 2011013001 10.1007/s11136-010-9770-x NLM20972628 104872517 ppf: 479 ppct: 12 formats: fmt: @attributes: type: P tig: atl: Development of computerized adaptive testing (CAT) for the EORTC QLQ-C30 physical functioning dimension. aug: au: Petersen MA Groenvold M Aaronson NK Chie WC Conroy T Costantini A Fayers P Helbostad J Holzner B Kaasa S Singer S Velikova G Young T Petersen, Morten Aa Groenvold, Mogens Aaronson, Neil K Chie, Wei-Chu Conroy, Thierry Costantini, Anna Fayers, Peter affil: The Research Unit, Department of Palliative Medicine, Bispebjerg Hospital, Bispebjerg bakke 23, 2400, Copenhagen NV, Denmark sug: subj: Activities of Daily Living Symptoms Quality of Life Questionnaires User-Computer Interface Adolescence Adult Aged Aged, 80 and Over Female Male Middle Age Models, Psychological Psychometrics Young Adult Adolescent: 13-18 years Adult: 19-44 years Aged: 65+ years Aged, 80 & over Middle Aged: 45-64 years Female Male ab: Purpose: Computerized adaptive test (CAT) methods, based on item response theory (IRT), enable a patient-reported outcome instrument to be adapted to the individual patient while maintaining direct comparability of scores. The EORTC Quality of Life Group is developing a CAT version of the widely used EORTC QLQ-C30. We present the development and psychometric validation of the item pool for the first of the scales, physical functioning (PF).Methods: Initial developments (including literature search and patient and expert evaluations) resulted in 56 candidate items. Responses to these items were collected from 1,176 patients with cancer from Denmark, France, Germany, Italy, Taiwan, and the United Kingdom. The items were evaluated with regard to psychometric properties.Results: Evaluations showed that 31 of the items could be included in a unidimensional IRT model with acceptable fit and good content coverage, although the pool may lack items at the upper extreme (good PF). There were several findings of significant differential item functioning (DIF). However, the DIF findings appeared to have little impact on the PF estimation.Conclusions: We have established an item pool for CAT measurement of PF and believe that this CAT instrument will clearly improve the EORTC measurement of PF. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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