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

Purpose To investigate the construct validity of the ICECAP-A capability wellbeing measure. Methods 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...

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Bibliographic Details
Published in:Quality of life research 2013-09, Vol.22 (7), p.1831-1840
Main Authors: Al-Janabi, Hareth, Peters, Tim J., Brazier, John, Bryan, Stirling, Flynn, Terry N., Clemens, Sam, Moody, Alison, Coast, Joanna
Format: Article
Language:English
Subjects:
Adolescent
Adult
Adults
Aged
Aged, 80 and over
Construct validity
Disabilities
Employment
Female
Freedom of association
Friendship
Happiness
Health economics
Humans
Hypotheses
Interviews
Interviews as Topic
Investigations
Male
Medicine
Medicine & Public Health
Middle Aged
Perception
Personal Satisfaction
Pleasure
Population
Psychometrics
Public Health
Qualitative research
Quality of life
Quality of Life - psychology
Quality of Life Research
Quantitative psychology
Regression Analysis
Reproducibility of Results
Self Report
Social research
Socioeconomic Factors
Socioeconomics
Sociology
Surveys and Questionnaires - standards
Validation studies
Validity
Wellbeing
Young Adult
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Summary:Purpose To investigate the construct validity of the ICECAP-A capability wellbeing measure. Methods 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. Results 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. Conclusion 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.
ISSN:0962-9343
1573-2649
DOI:10.1007/s11136-012-0293-5