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Psychometric properties of the Swedish version of the Self-Transcendence Scale among very old people.

Berit Lundman, Kristofer Årestedt, Astrid Norberg, Catharina Norberg, Regina Santamäki Fischer, Hugo Lövheim

Journal of nursing measurement 2015 DOI: 10.1891/1061-3749.23.1.96 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Psychometric validation study Peer reviewed
Sample size 254
Population Swedish-speaking adults: 194 people aged 85-103 years and a convenience sample of 60 people aged 21-69 years
Measures Self-Transcendence Scale (STS), Cohen's weighted kappa, intraclass correlation coefficient, least significant change, exploratory factor analysis
Key points The revised Swedish Self-Transcendence Scale demonstrated satisfactory psychometric properties, with weighted kappa values from .40 to .89 and an intraclass correlation coefficient of .763 for the original scale. Exploratory factor analysis supported two of the four dimensions proposed in Reed's self-transcendence theory.

Abstract

This study tested the psychometric properties of a Swedish version of the Self-Transcendence Scale (STS). Cohen's weighted kappa, agreement, absolute reliability, relative reliability, and internal consistency were calculated, and the underlying structure of the STS was established by exploratory factor analysis. There were 2 samples available: 1 including 194 people aged 85-103 years and a convenience sample of 60 people aged 21-69 years. Weighted kappa values ranged from .40 to .89. The intraclass correlation coefficient for the original STS was .763, and the least significant change between repeated tests was 6.25 points. The revised STS was found to have satisfactory psychometric properties, and 2 of the 4 underlying dimensions in Reed's self-transcendence theory were supported.

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