Alcohol and aggression: An integration of findings from experimental studies

Correlational studies had uncovered a relationship between alcohol consumption and violent criminal behavior; however, as these studies had typically suffered from weak internal validity, they had left doubt as to the causal influence of alcohol on violence. This article seeks to complement the correlational research by reviewing the experimental literature on alcohol and interpersonal aggression. The dominant experimental paradigms are reviewed, and a synthesis of findings from seven published meta-analytic studies is presented. Conclusions from the experimental literature affirm the popular belief that alcohol consumption increases aggressive behavior. This effect is not uniform, however, and is instead moderated by factors commonly found in real-world accounts of intoxicated violence. Theoretical explanations for the alcohol/violence link are discussed, and suggestions for future research are presented. (c) 2006 Elsevier Ltd. All rights reserved.