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J Adv Nurs. 2019 Aug 23. doi: 10.1111/jan.14180. [Epub ahead of print]

The thriving of older people assessment scale: Psychometric evaluation and short-form development.

Author information

1
Department of Nursing, Umeå University, Umeå, Sweden.
2
Department of Community Medicine and Rehabilitation, Geriatric Medicine, Umeå University, Umeå, Sweden.
3
Department of Public Health and Clinical Medicine, Section of Sustainable Health, Umeå University, Umeå, Sweden.
4
Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden.
5
Department of Neurobiology, Care Sciences and Society, Division of Nursing, Karolinska Institutet, Huddinge, Sweden.
6
Lovisenberg Diaconal University College, Oslo, Norway.
7
Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden.
8
School of Nursing & Midwifery, La Trobe University, Melbourne, Vic., Australia.

Abstract

AIM:

To evaluate the psychometric properties and performance of the 32-item Thriving of Older People Assessment Scale (TOPAS) and to explore reduction into a short-form.

BACKGROUND:

The 32-item TOPAS has been used in studies of place-related well-being as a positive measure in long-term care to assess nursing home resident thriving; however, item redundancy has not previously been explored.

DESIGN:

Cross-sectional study.

METHOD:

Staff members completed the 32-item TOPAS as proxy raters for a random sample of Swedish nursing home residents (N = 4,831) between November 2013 - September 2014. Reliability analysis, exploratory factor analysis and item response theory-based analysis were undertaken. Items were systematically identified for reduction using statistical and theoretical analysis. Correlation testing, means comparison and model fit evaluation confirmed scale equivalence.

RESULTS:

Psychometric properties of the 32-item TOPAS were satisfactory and several items were identified for scale reduction. The proposed short-form TOPAS exhibited a high level of internal consistency (α = 0.90) and strong correlation (r = 0.98) to the original scale, while also retaining diversity among items in terms of factor structure and item difficulties.

CONCLUSION:

The 32-item and short-form TOPAS' indicated sound validity and reliability to measure resident thriving in the nursing home context.

IMPACT:

There is a lack of positive life-world measures for use in nursing homes. The short-form TOPAS indicated sound validity and reliability to measure resident thriving, providing a feasible measure with enhanced functionality for use in aged care research, assessments and care planning for health-promoting purposes in nursing homes.

KEYWORDS:

TOPAS; instrument development; long-term care; nursing; nursing home residents; place-related well-being; psychometrics; scale reduction; thriving

PMID:
31441533
DOI:
10.1111/jan.14180

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