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	Older People's Quality of Life Questionnaire	Successful Aging Operationalization
Field	Social Gerontology	Social Gerontology
Family	Latent structure	Process / pipeline
Year of origin	2009	1997
Originator	Ann Bowling	John W. Rowe and Robert L. Kahn (MacArthur Foundation Research Network on Successful Aging)
Type	Lay-derived multidimensional quality of life questionnaire for older adults	Operational framework for defining and classifying successful aging
Seminal source	Bowling, A. (2009). The psychometric properties of the older people's quality of life questionnaire, compared with the CASP-19 and the WHOQOL-OLD. Current Gerontology and Geriatrics Research, 2009, 298950.	Rowe, J. W., & Kahn, R. L. (1997). Successful aging. The Gerontologist, 37(4), 433-440.
Aliases	OPQOL, Older People's Quality of Life Scale, Bowling OPQOL, OPQOL-35	Rowe-Kahn Successful Aging Model, Successful Aging Criteria, MacArthur Successful Aging Framework, Three-Component Successful Aging
Related	3	4
Summary	The Older People's Quality of Life Questionnaire (OPQOL) is a 35-item multidimensional self-report measure of quality of life developed by Ann Bowling and distinguished by its lay, bottom-up origins. Rather than imposing expert-defined domains, the OPQOL was derived from what older people themselves said made their lives good or bad, drawn from in-depth interviews and survey research in British populations. The items span domains including life overall, health, social relationships, independence and control, home and neighbourhood, psychological and emotional wellbeing, financial circumstances, leisure and activities, and religion or culture. Each item is rated on a five-point agreement scale and the items are summed into subscale and total scores. In her 2009 paper, Bowling reported the questionnaire's psychometric properties and compared it directly with two established older-adult measures, CASP-19 and the WHOQOL-OLD. The OPQOL is valued for grounding quality of life in older people's own priorities while remaining broad enough to cover health, social, and material life.	The Rowe-Kahn model operationalizes successful aging as a positive, multidimensional state rather than the mere absence of decline. In their landmark 1997 Gerontologist paper, John Rowe and Robert Kahn argued that gerontology had overemphasized average or 'usual' aging and neglected those who age well, and they proposed a concrete three-part definition. An individual is aging successfully when they simultaneously meet three criteria: low probability of disease and disease-related disability, high cognitive and physical functional capacity, and active engagement with life through productive activity and interpersonal relationships. Crucially, the model treats these as a hierarchy that must be met jointly, so success is defined by the conjunction of all three components rather than excellence on any one. The framework drew on the MacArthur Foundation Research Network's longitudinal studies and reframed aging as something partly within individual and societal control. It became one of the most cited and most debated organizing frameworks in social gerontology, spawning both widespread application and vigorous critique. Its enduring contribution is a clear, testable template for what 'good' aging means and how to classify it.