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Psychometric evaluation and predictive validity of Ryff's psychological well-being items in a UK birth cohort sample of women

Abbott, Rosemary A and Ploubidis, George B and Huppert, Felicia A and Kuh, Diana and Wadsworth, Michael E J and Croudace, Tim J (2006) Psychometric evaluation and predictive validity of Ryff's psychological well-being items in a UK birth cohort sample of women. Health and quality of life outcomes, 4. p. 76. ISSN 1477-7525. DOI UNSPECIFIED

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Abstract

BACKGROUND: Investigations of the structure of psychological well-being items are useful for advancing knowledge of what dimensions define psychological well-being in practice. Ryff has proposed a multidimensional model of psychological well-being and her questionnaire items are widely used but their latent structure and factorial validity remains contentious. METHODS: We applied latent variable models for factor analysis of ordinal/categorical data to a 42-item version of Ryff's psychological well-being scales administered to women aged 52 in a UK birth cohort study (n = 1,179). Construct (predictive) validity was examined against a measure of mental health recorded one year later. RESULTS: Inter-factor correlations among four of the first-order psychological well-being constructs were sufficiently high (> 0.80) to warrant a parsimonious representation as a second-order general well-being dimension. Method factors for questions reflecting positive and negative item content, orthogonal to the construct factors and assumed independent of each other, improved model fit by removing nuisance variance. Predictive validity correlations between psychological well-being and a multidimensional measure of psychological distress were dominated by the contribution of environmental mastery, in keeping with earlier findings from cross-sectional studies that have correlated well-being and severity of depression. CONCLUSION: Our preferred model included a single second-order factor, loaded by four of the six first-order factors, two method factors, and two more distinct first-order factors. Psychological well-being is negatively associated with dimensions of mental health. Further investigation of precision of measurement across the health continuum is required.

Item Type: Article
Controlled Keywords: Cohort Studies, Cross-Sectional Studies, Factor Analysis, Statistical, Female, Great Britain, Humans, Mental Health, Middle Aged, Personal Satisfaction, Psychometrics, Quality of Life, Questionnaires, Social Class, Women's Health
Depositing User: Atira Pure
Date Deposited: 21 May 2014 15:52
Last Modified: 29 Jan 2015 09:10
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