There are stereotypes which suggest that the man who is concerned about attaining power and proving his superiority as a male is likely to have an exaggerated idea of his own "bigness." Presumably, he may express in his perception of his own body size what he wishes to achieve in his power relationships. The present study was an exploratory attempt to evaluate this possibility. Fiftytwo male college students were used as Ss. Power aspirations were measured by means of the Achievement, Aggression, and Dominance scales of the Edwards Persona1 Preference Schedule. In addition, a new technique w a s used to assess degree of commitment to the idea of masculine superiority. This technique required S's reacting to a list of 30 skills and positive attributes (e.g., agility, verbal ability, intelligence, common sense) and deciding in each instance whether i t is more characteristic of the average man or woman. The greater the number of such skills ascribed to men, the more was S considered to be committed to the idea of male superiority.Judgments of self height were used to evaluate S's perception of his own "bigness." These judgments were obtained by asking each S to stand 1 in. from a wall with his eyes closed and his hands at his sides. H e was then asked to put the forefinger of his right hand at a level on the wall which was even with the top of his head. Three such trials were obtained. The difference between S's actual height and the average of his height estimates was computed.It was found that degree of overestimation of self height was moderately and positively related to Achievement (x2 = 3.2, p < .05, one-tail test), Dominance (X' = 3.2, p