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Factor structure and construct validity of the Adult Social Care Outcomes Toolkit for Carers (ASCOT-Carer)

Rand, S.E., Malley, J.N., Netten, A.P., Forder, Julien E. (2015) Factor structure and construct validity of the Adult Social Care Outcomes Toolkit for Carers (ASCOT-Carer). Quality of Life Research, 24 (11). pp. 2601-2614. ISSN 0962-9343. E-ISSN 1573-2649. (doi:10.1007/s11136-015-1011-x)

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http://dx.doi.org/10.1007/s11136-015-1011-x

Abstract

Background: The ASCOT-Carer is a self-report instrument designed to measure social care-related quality of life (SCRQoL). This article presents the psychometric testing and validation of the ASCOT-Carer four response-level interview (INT4) in a sample of unpaid carers of adults who receive publicly-funded social care services in England.

Methods: Unpaid carers were identified through a survey of users of publicly-funded social care services in England. 387 carers completed a face-to-face or telephone interview. Data on variables hypothesised to be related to SCRQoL (for example, characteristics of the carer, cared-for person and care situation) and measures of carer experience, strain, health-related quality of life and overall QoL were collected. Relationships between these variables and overall SCRQoL score were evaluated through correlation, ANOVA and regression analysis to test the construct validity of the scale. Internal reliability was assessed using Cronbach’s alpha and feasibility by the number of missing responses.

Results: The construct validity was supported by statistically significant relationships between SCRQoL and scores on instruments of related constructs, as well as with characteristics of the carer and care recipient in univariate and multivariate analyses. A Cronbach’s alpha of 0.87 (7 items) indicates that the internal reliability of the instrument is satisfactory and a low number of missing responses (<1%) indicates a high level of acceptance.

Conclusions: The results provide evidence to support the construct validity, factor structure, internal reliability and feasibility of the ASCOT-Carer INT4 as an instrument for measuring social care-related quality of life of unpaid carers who care for adults with a variety of long-term conditions, disability or problems related to old age.

Item Type: Article
DOI/Identification number: 10.1007/s11136-015-1011-x
Uncontrolled keywords: Informal care; caregiving; quality of life; social care; outcomes; ASCOT; construct validity
Subjects: H Social Sciences > HV Social pathology. Social and public welfare > HV59 Institutional care/home care
Divisions: Faculties > Social Sciences > School of Social Policy Sociology and Social Research > Personal Social Services Research Unit
Depositing User: Stacey Rand
Date Deposited: 05 May 2015 11:09 UTC
Last Modified: 01 Aug 2019 10:38 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/48181 (The current URI for this page, for reference purposes)
Rand, S.E.: https://orcid.org/0000-0001-9071-2842
Netten, A.P.: https://orcid.org/0000-0003-2567-8523
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