Personality consistency: Eminent architects 25 years later

One hundred and twenty‐four American male architects representing three levels of eminence and creativity were studied by Donald W. MacKinnon and his collaborators in 1958–1960. The present report is based on a follow‐up of 70 of the 83 (78%) surviving architects (mean age 71 years, with a range of 62–88). The architects were individually interviewed at their place of residence between 1983–1984 and received several of the same tests they had received 25 years before, including the Adjective Check List (ACL) and the California Psychological Inventory (CPI). The present study offered the architects a chance to look back at lifelong careers, and it allowed the researchers to establish that the distinct personality characteristics of the three groups of architects remained remarkably stable, and were at least partially responsible for moderating longevity and achievement. Opportunities for full‐time practice were radically different for the three groups after age 65. The interview data suggested that factors that are responsible for successful productivity in old age include: (a) commitment and drive; (b) overlearned skills; (c) aesthetic sensitivity; (d) ability to be a good salesman; and (e) ability to delegate responsibility. The continuing impressive creativity of the architects can be best explained by Simonton's (1984) constant probability of success model.