Journal article
Quality of Life and Health-Related Quality of Life over 1 Year in Older Women: Monitoring Stability and Reliability of Measurement
Social Indicators Research, Vol.123(1), pp.267-279
2015
Abstract
Assessing quality of life (QOL) and health-related quality of life (HRQOL) in older adults is important. Yet, limited research is available on the stability of these constructs and the psychometric properties of QOL [e.g., Satisfaction with Life Scale (SWLS)] and HRQOL [e.g., Short-Form 12 Health Survey (SF-12)] measures in this population. Such knowledge is important for designing and interpreting interventions. We examined stability of QOL (SWLS) and HRQOL (SF-12) and their test–retest reliability, measurement error, and interpretability over 1 year in older Black and White women (n = 230). Stability and reliability were ascertained through paired sample t tests and intraclass correlation coefficients (ICCs). Standard error of measurement and coefficient of variation assessed measurement error. Smallest detectable change estimated score interpretability. QOL and HRQOL remained stable; ICC values indicated moderate reliability for the SWLS and SF-12 (SWLS = 0.73, SF-12 Physical Composite Summary = 0.69, SF-12 Mental Composite Summary = 0.58). Measurement error and interpretability estimates were similar for both the SWLS and SF-12. Interpretability estimates indicated a change in score of around 33 % may represent an important change. We provide novel data for selecting and interpreting QOL and HRQOL measures contributing to a better understanding of intervention efficacy.
Details
- Title
- Quality of Life and Health-Related Quality of Life over 1 Year in Older Women: Monitoring Stability and Reliability of Measurement
- Authors/Creators
- Y.C. Learmonth (Author/Creator) - University of Illinois Urbana-ChampaignE.A. Alwick (Author/Creator) - University of Illinois Urbana-ChampaignE. McAuley (Author/Creator) - University of Illinois Urbana-ChampaignR.W. Motl (Author/Creator) - University of Illinois Urbana-Champaign
- Publication Details
- Social Indicators Research, Vol.123(1), pp.267-279
- Publisher
- Springer Netherlands
- Identifiers
- 991005544445207891
- Copyright
- © 2014, Springer Science+Business Media Dordrecht.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 6 Social Sciences
- 6.73 Social Psychology
- 6.73.785 Subjective Well-Being
- Web Of Science research areas
- Social Sciences, Interdisciplinary
- Sociology
- ESI research areas
- Social Sciences, general