Factor structure and measurement invariance of the older people’s quality of life scale

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Accurate quality of life assessment is crucial for the development of our understanding of positive ageing. The Older People’s Quality of Life Scale (OPQOL) is a measure developed for use with older adult samples; however, its factor structure remains unclear and measurement consistency across population subgroups has not yet been confirmed. 432 Australian older adults aged 65+ completed the OPQOL as part of a telephone survey. An exploratory factor analysis (EFA; Mplus) was conducted to clarify the factor structure, while confirmatory factor analyses (CFA) were run to confirm measurement invariance across age and gender subgroups. Application of a CFA to the original 32-item OPQOL yielded poor model fit. A subsequent EFA suggested a six-factor solution incorporating 23 of the original items. Measurement invariance of the proposed model was determined via a series of CFAs that demonstrated acceptable-to-good model fit and supported configural, metric and scalar invariance across both age and gender. A shorter version of the OPQOL that provides both a total and subscale scores is proposed, but the model requires further confirmation via CFA in other English-speaking samples. This version of the OPQOL demonstrates consistency of measurement across age and gender, which suggests that scores can be meaningfully compared between groups.

Original languageEnglish
Pages (from-to)12732-12742
Number of pages11
JournalCurrent Psychology
Issue number15
Early online date7 Jan 2022
Publication statusPublished - May 2023


  • Factor analysis
  • Factorial invariance
  • Older adults
  • Quality of life


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