Self-administered surveys were completed by 197 men in college at 2 time points, 1 year apart. Men who committed sexual assault at multiple time points (repeat assaulters) had the most extreme scores on measures of hostility toward women, past sexual experiences, drinking in sexual situations, and adolescent delinquency. Nonassaulters had the least extreme scores and men who committed sexual assault at only 1 time point had scores that tended to fall in between. Repeat assaulters also expressed significantly less remorse when they described their sexual assault at Time 1 than did past assaulters who committed sexual assault only at the initial time point. These findings demonstrate the importance of initiating prevention and treatment programs in early adolescence, before longstanding attitudes and behaviors tolerant of sexual assault are established.