Adolescent Alcohol Use: The Effects of Parental Knowledge, Peer Substance Use, and Peer Tolerance of Use

Objective: Parents and peers exert significant influence on a young person's decision to consume alcohol. This study examines the relationship between parental monitoring and adolescent alcohol consumption and tests whether peer substance use and tolerance of use mediates the relationship between monitoring and drinking. Method: Participants included 116 adolescents (53.5% female; M-age = 15.6). All participants reported drinking alcohol in the past 6 months, and 96 participants had been previously admitted to a hospital emergency department for an alcohol-related event. Mediation analyses were used to test the study hypotheses. Results: The total effect of baseline parental monitoring on 6-month alcohol use was 21.15 (p < .01), with higher monitoring related to less use. Controlling for peer use and tolerance of use, the effect of parental monitoring was reduced to .46, leaving an indirect effect of .69 (p < .01). Peer use and tolerance of use had no effect on participant alcohol use when controlling for parental monitoring. Conclusions: Study findings extend current knowledge about the interactive effects of parental supervision and peer influence on the drinking patterns of adolescents. Results underscore the importance of addressing both parental monitoring and peer influence in interventions that target adolescent alcohol use, recognizing peer factors as a potential mechanism of the effect that parental monitoring has on adolescent drinking.