A laboratory study of the effects of men's acute alcohol intoxication, perceptions of women's intoxication, and masculine gender role stress on the perpetration of sexual aggression.

backgroundAlthough research has established an association between alcohol use and sexual assault, few studies have examined how characteristics of the perpetrator may influence sexual aggression depending upon whether alcohol is consumed by the perpetrator and/or the victim. This laboratory-based investigation was designed to disentangle the effects of individual differences in masculine gender role stress (MGRS) and the perpetration of sexual aggression as a function of (1) men's acute alcohol intoxication and (2) whether a woman was consuming alcohol or not.

methodA community sample of 156 men participated in two laboratory sessions, during which they completed a self-report measure of MGRS (Session 1) and a modified version of the sexual imposition paradigm after consuming an alcoholic or non-alcoholic beverage (Session 2). In this paradigm, participants and a male friend were told that an ostensible female participant had consumed or not consumed alcohol. They were also told that she did not wish to view sexual content. Participants were then provided the opportunity to make the female confederate view a sexually or non-sexually explicit film. Sexual aggression was operationalized by selection of the sexually explicit film.

resultsA hierarchical logistic regression showed that men higher in MGRS who were intoxicated were (1) more likely than sober men to select the sexually explicit film when the woman was intoxicated and (2) less likely than sober men to select the sexually explicit film when the woman was sober.

conclusionsThese findings suggest that the perpetration of sexual aggression is most likely among men with higher MGRS when there is concordance in drinking (i.e., when either the man and woman are both drinking or are both not drinking).