Male graduates living together in the Institute rated themselves and one another on a 5-point scale of leadership. Similar ratings were obtained from a group of 23 girl students. In the homogeneous men's group, those judged highest on leadership judged themselves quite accurately; but in the less homogeneous girls' group, leaders tended to underestimate themselves. Correlational and graphic evidence is used to show that well adjusted leaders rate themselves and others by group standards, whereas maladjusted persons overestimate their own position and disagree with group rankings. (PsycINFO Database Record (c) 2006 APA, all rights reserved)