Test-retest reliability of capability measurement in the UK general population

Research output: Contribution to journalArticle

Authors

External organisations

  • Centre for the Study of Choice (CenSoC), University of Technology Sydney, Sydney, Australia.
  • Health Economics Unit, School of Health and Population Sciences, Public Health Building, University of Birmingham, Birmingham, B15 2TT.
  • BRISTOL UNIVERSITY
  • School of Population and Public Health; University of British Columbia; Vancouver Canada

Abstract

Although philosophically attractive, it may be difficult, in practice, to measure individuals' capabilities (what they are able to do in their lives) as opposed to their functionings (what they actually do). To examine whether capability information could be reliably self-reported, we administered a measure of self-reported capability (the Investigating Choice Experiments Capability Measure for Adults, ICECAP-A) on two occasions, 2 weeks apart, alongside a self-reported health measure (the EuroQol Five Dimensional Questionnaire with 3 levels, EQ-5D-3L). We found that respondents were able to report capabilities with a moderate level of consistency, although somewhat less reliably than their health status. The more socially orientated nature of some of the capability questions may account for the difference.

Details

Original languageEnglish
Pages (from-to)625–630
JournalHealth Economics
Volume24
Issue number5
Early online date9 Sep 2014
Publication statusPublished - 8 Apr 2015

Keywords

  • capability approach, outcomes, psychometrics, ICECAP, EQ-5D