Journal
QUALITY OF LIFE RESEARCH
Volume 22, Issue 7, Pages 1831-1840Publisher
SPRINGER
DOI: 10.1007/s11136-012-0293-5
Keywords
Capability approach; Health economics; Outcomes; Psychometrics; Quality of life; Wellbeing
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Funding
- MRC [G0701027]
- MRC [G0800800, G0800808, G0701027] Funding Source: UKRI
- Medical Research Council [G0701027, G0800800, G0800808] Funding Source: researchfish
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To investigate the construct validity of the ICECAP-A capability wellbeing measure. A face-to-face interview-administered survey was conducted with 418 members of the UK general population, randomly sampled from the Postcode Address File. Pre-specified hypotheses were developed about the expected associations between individuals' ICECAP-A responses and their socio-economic circumstances, health and freedom. The hypotheses were investigated using statistical tests of association. The ICECAP-A responses and scores reflected differences across different health and socioeconomic groups as anticipated, but did not distinguish individuals by the level of local deprivation. Mean ICECAP-A scores reflected individuals' perceived freedom slightly more closely than did measures of health and happiness. This study suggests that the ICECAP-A measure can identify expected differences in capability wellbeing in a general population sample. Further work could establish whether self-reported capabilities exhibit desirable validity and acceptability in sub-groups of the population such as patients, social care recipients and informal carers.
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