Jaye L Derrick1, Maria Testa2. 1. Department of Psychology, The University of Houston, Houston, Texas. 2. Research Institution on Addictions, University at Buffalo, The State University of New York, Buffalo, New York.
Abstract
OBJECTIVE: Survey studies provide evidence that experiencing intimate partner aggression (IPA) contributes to subsequent alcohol use. However, it is unknown whether the increase in alcohol use over time reflects a temporal effect of IPA. We examined verbal and physical IPA as predictors of alcohol use and heavy drinking within the next few hours. We also investigated whether both victims and perpetrators drank following IPA, and if it mattered which partner reported the aggression. METHOD: The data reported here were derived from a 56-day diary study examining the association between alcohol use and partner aggression in 118 heterosexual couples. We examined whether alcohol use in a given hour could be predicted by IPA in the previous 3 hours, taking into account victim/perpetrator status, source of the report (self, other), and gender. RESULTS: Victims were twice as likely to use alcohol in a given hour when they reported having received verbal IPA in the previous 3 hours, independent of the perpetrator's report. Similarly, perpetrators were more than twice as likely to use alcohol in a given hour when they reported having perpetrated verbal IPA in the previous 3 hours, independent of the victim's report. Results were similar when reports of mutual IPA were considered. Verbal IPA increased the likelihood of drinking but not the likelihood of heavy drinking. Results for physical IPA were not significant. CONCLUSIONS: Verbal IPA is a proximal predictor of alcohol use for both victims and perpetrators. However, effects emerge only when individuals report aggression, and not when their partner provides the sole report, emphasizing the importance of the individual's perception of IPA.
OBJECTIVE: Survey studies provide evidence that experiencing intimate partner aggression (IPA) contributes to subsequent alcohol use. However, it is unknown whether the increase in alcohol use over time reflects a temporal effect of IPA. We examined verbal and physical IPA as predictors of alcohol use and heavy drinking within the next few hours. We also investigated whether both victims and perpetrators drank following IPA, and if it mattered which partner reported the aggression. METHOD: The data reported here were derived from a 56-day diary study examining the association between alcohol use and partner aggression in 118 heterosexual couples. We examined whether alcohol use in a given hour could be predicted by IPA in the previous 3 hours, taking into account victim/perpetrator status, source of the report (self, other), and gender. RESULTS: Victims were twice as likely to use alcohol in a given hour when they reported having received verbal IPA in the previous 3 hours, independent of the perpetrator's report. Similarly, perpetrators were more than twice as likely to use alcohol in a given hour when they reported having perpetrated verbal IPA in the previous 3 hours, independent of the victim's report. Results were similar when reports of mutual IPA were considered. Verbal IPA increased the likelihood of drinking but not the likelihood of heavy drinking. Results for physical IPA were not significant. CONCLUSIONS: Verbal IPA is a proximal predictor of alcohol use for both victims and perpetrators. However, effects emerge only when individuals report aggression, and not when their partner provides the sole report, emphasizing the importance of the individual's perception of IPA.
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