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Journal Article Personality and Patterns of Aging Get access Robert J. Havighurst, Ph. D. Robert J. Havighurst, Ph. D. 2Committee on Human Development, University of ChicagoChicago, Illinois Search for other works by this author on: Oxford Academic PubMed Google Scholar The Gerontologist, Volume 8, Issue 1Part₂, Spring 1968, Pages 20–23, https: //doi. org/10. 1093/geront/8. 1Part₂. 20 Published: 01 March 1968
Robert J. Havighurst (1968) studied this question.