This study assessed college men's reactions immediately following and 2 months after completing self-report measures of interpersonal violence. Results showed that 4.3% of men experienced immediate negative emotional reactions. Greater immediate negative reactions were related to personal benefits to research participation, anticipation of future distress, experiences of childhood physical abuse and psychological abuse/neglect, and physical abuse perpetration either in adolescence or adulthood. Attrition from the study over the 2-month follow-up was predicted by fewer perceived personal benefits to study participation but not by negative emotional reactions. None of the participants who returned for the 2-month follow-up reported experiencing negative emotional reactions to research participation over the interim. (Contains 2 tables.)