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The psychometric properties of the control, autonomy, self-realisation and pleasure scale (CASP-19) for older adults with dementia

Stoner, CR; Orrell, M; Spector, A; (2018) The psychometric properties of the control, autonomy, self-realisation and pleasure scale (CASP-19) for older adults with dementia. Aging and Mental Health 10.1080/13607863.2018.1428940. Green open access

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Abstract

Introduction: Asset based approaches to dementia research and measurement emphasise the need to also assess the strengths and capabilities that people with dementia retain, rather than assessing only losses or deficits. The CASP-19 proposes wellbeing as the satisfaction of four ‘needs’ (control, autonomy, self-realisation and pleasure). The CASP-19 may reflect the asses-based approach and has been validated in over 20 countries. The aim of this study was to evaluate the CASP-19's psychometric properties in older adults with dementia. / Methods: An observational study was conducted at five NHS trusts across England. Participants were asked to either complete the CASP-19 by interview or self-report, alongside four other measures to assess psychometric properties. / Results: Internal consistency overall was good (α = .856) but the autonomy subscale fell below the acceptable. The CASP-19 was significantly correlated in the expected direction with measures of quality of life (r = .707), depression (r = −.707) and additional measures. It also remained moderately stable over a one-week period but factor analyses indicated a 12-item measure may be more robust. / Conclusions: Despite some variations, the CASP-19 appears to have adequate psychometric properties for older adults with dementia and can be used in future research and practice.

Type: Article
Title: The psychometric properties of the control, autonomy, self-realisation and pleasure scale (CASP-19) for older adults with dementia
Open access status: An open access version is available from UCL Discovery
DOI: 10.1080/13607863.2018.1428940
Publisher version: http://dx.doi.org/10.1080/13607863.2018.1428940
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: CASP-19, psychometric, dementia, quality of life, reliability, validity, wellbeing, Alzheimer's, outcome measurement, positive psychology
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Division of Psychiatry
URI: https://discovery.ucl.ac.uk/id/eprint/10041695
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