Three experiments were conducted to test a two-factor model of the determinants of attributional modesty in women. Women tended to make modest attributions for success when they were concerned about how others would evaluate them and when they were concerned about their own self-image. Specifically, the knowledge that one's attributions would be public and the anticipation of future performance on similar tasks led to modesty. Self-derogatory attributions for failure occurred when the subjects thought their attributions would be public.