The college years are a time of significant growth in the individual's adaptive capacities in the cognitive, emotional, and social domains. Erikson's theory of 1963 predicts that the college years are specifically a time of growth in the psychosocial issue of ego identity, but along with this development are increases in other aspects of psychosocial functioning. The opportunity to test this prediction across three cohorts of college students was presented through an expanded follow-up study of Constantinople's 1969 classic investigation of psychosocial development in a sample of over 300 undergraduates. Data were collected from undergraduates attending the same university in 1977 and 1988, allowing for a three-wave cross-sectional sequences design. The results indicated that, for all times of measurement and most of Erikson's psychosocial stages, college seniors generally had higher development than their younger classmates. Furthermore, females generally had higher psychosocial development scores than did males. The lack of cohort differences in the observed patterns of development and the minimal extent of cohort differences across college classes suggests that personality development during college is relatively uninfluenced by shifting psychosocial pressures over decades of social change.