The purpose of this research was to study psychological type and its relationship to the accomplishment of developmental task. The overall goal was to enhance the understanding of differences among individuals in light of theories of student development. Psychological type was operationalized and measured by the Myers-Briggs Type Indicator (MBTI), and developmental tasks were measured by the Student Developmental Task Inventory (SDTI-2);The sample consisted of 220 males and 252 females from incoming freshmen at the University of Maine in 1983 and 1984. Students were approximately 18 years of age and resided on campus while enrolled in the College of Arts and Science;Twelve hypotheses were tested using correlation and stepwise multiple regression analysis procedure to determine the relationship between the MBTI preferences Extraversion/Introversion, Sensing/Intuition, Thinking/Feeling, and Judgment/Perception and the SDTI tasks of Developing Purpose, Freeing Interpersonal Relations, and Developing Autonomy. Gender was used as a moderator variable;In summary, ten out of twelve hypotheses were rejected when gender was used as a moderator variable. Extraversion was significantly correlated for both males and females with all three tasks, that is, Developing Autonomy, Developing Mature Interpersonal Relations and Developing Purpose tasks. For males, Intuition was correlated with Mature Interpersonal Relations and Autonomy. Thinking was correlated significantly with the Developing Autonomy task for females only. Also among females Thinking correlated with the Developing Purpose task. A preference for Feeling was related to Developing Mature Interpersonal Relations task for both sexes. Judgment was found to be related to Autonomy and Purpose.