An investigation of the construct validity of the ICECAP-A capability measure

作者：Al Janabi Hareth^*; Peters Tim J; Brazier John; Bryan Stirling; Flynn Terry N; Clemens Sam; Moody Alison; Coast Joanna

来源：Quality of Life Research, 2013, 22(7): 1831-1840.

DOI：10.1007/s11136-012-0293-5

• Capability approach
• Health economics
• Outcomes
• Psychometrics
• Quality of life
• Wellbeing

To investigate the construct validity of the ICECAP-A capability wellbeing measure. %26lt;br%26gt;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%26apos; ICECAP-A responses and their socio-economic circumstances, health and freedom. The hypotheses were investigated using statistical tests of association. %26lt;br%26gt;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%26apos; perceived freedom slightly more closely than did measures of health and happiness. %26lt;br%26gt;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.

• 出版日期2013-9