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	Lawton Ecological Model of Aging	Successful Aging Operationalization
Field	Social Gerontology	Social Gerontology
Family	Process / pipeline	Process / pipeline
Year of origin	1973	1997
Originator	M. Powell Lawton & Lucille Nahemow	John W. Rowe and Robert L. Kahn (MacArthur Foundation Research Network on Successful Aging)
Type	Ecological theoretical framework for aging and adaptation	Operational framework for defining and classifying successful aging
Seminal source	Lawton, M. P., & Nahemow, L. (1973). Ecology and the aging process. In C. Eisdorfer & M. P. Lawton (Eds.), The psychology of adult development and aging (pp. 619-674). American Psychological Association.	Rowe, J. W., & Kahn, R. L. (1997). Successful aging. The Gerontologist, 37(4), 433-440.
Aliases	Competence-Press Model, Ecological Model of Aging, Person-Environment Fit Model, Environmental Docility Hypothesis	Rowe-Kahn Successful Aging Model, Successful Aging Criteria, MacArthur Successful Aging Framework, Three-Component Successful Aging
Related	3	4
Summary	The Lawton and Nahemow ecological model of aging, also called the competence-press model, is a theoretical framework that explains the behavior and emotional wellbeing of older people as a joint product of their personal capacities and the demands of their environment. Introduced in 1973, it holds that adaptive behavior arises when the level of environmental press matches a person's level of competence, and that mismatches in either direction produce maladaptive behavior and negative affect. Its most famous proposition, the environmental docility hypothesis, states that as individual competence declines the environment exerts proportionally greater influence on behavior, so settings matter most for the most vulnerable. The model introduced the ideas of adaptation level and zones of maximum comfort and maximum performance, giving environmental gerontology a way to think about optimal challenge. It reframed aging not as a property of the person alone but as a transaction between person and place, with direct implications for designing housing, care settings, and communities. The framework remains foundational for environmental and applied gerontology.	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.