The Differential Influence of Drinking, Sensation Seeking, and Impulsivity on the Perpetration of Unwanted Sexual Advances and Sexual Coercion.

There are startling rates of sexual coercion across college campuses, underscoring the importance of identifying risk factors and intervening early to prevent perpetration of these unwanted sexual events. The aim of this study was to examine the effects of impulsivity, sensation seeking, and alcohol use on the odds of perpetrating unwanted sexual advances (i.e., forced fondling, kissing, or petting) and sexual coercion (i.e., sexual intercourse through arguments, pressure, or physical force) during the subsequent 6 years. Male participants (N = 901) were part of a 6-year longitudinal study, which explored alcohol use and associated behavioral risks throughout emerging adulthood. Participants provided self-reported surveys across 6 years, starting the summer before their start of college. Using logistic regression models, these analyses examined the main effects and interactions of impulsivity, sensation seeking, and alcohol use, measured during the summer before the start of college, on the odds of perpetrating one or multiple instances of unwanted sexual advances and sexual coercion across the subsequent 6 years. Results indicated that higher levels of sensation seeking and heavier drinking on drinking days during high school contributed to greater odds of being a one-time perpetrator of unwanted sexual advances during the next 6 years. Conversely, impulsivity, but not alcohol use, was associated with greater risk of perpetrating multiple instances of both unwanted sexual advances and sexual coercion. Alcohol use did not significantly moderate the influence of personality on perpetration. These results underscore the importance of early intervention and using impulsivity and sensation seeking to tailor current prevention efforts to decrease the likelihood of sexual coercion perpetration during college.