The present research examined possible sex differences in the relative strengths of the norms of equity and equality as determinants of reward distribution behavior. The subjects of the study were 72 male and 78 female undergraduate students. It was predicted that females would be more concerned with equality than males. Results supported the hypothesis since males divided money equally with a co-worker with equal inputs only when the total amount of reward was congruent with an internal standard of equitable pay; when reward level exceeded this amount, they gave more than 50% to themselves. Females, however, always divided the reward equally. (Author/LAA)