ABSTRACT
In a preliminary examination of subjects Dr. David Gutmann proposed a system of several personality types which appeared to account for the major personality variation found within the sample. He then analyzed each record in terms of its fit to the five personality types and subsequently decoded them and arrayed them by age against type. The findings tentatively suggest the possibility of describing personality changes with age in terms of established personality integrations undergoing rephrasing under the necessity to adjust to internal and external changes. The consistency with which these changes appear in these data suggests that in middle maturity normal working business men experience a need for the reconsideration of established personality patterns. The first group of hypotheses which we have which appear to suggest personality changes with age related to the theory posited above are those stemming from a study of younger and middle-aged persons.
