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Chunk #53 — Discussion

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Spit for Science: launching a longitudinal study of genetic and environmental influences on substance use and emotional health at a large US university.
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Several of the initial findings of predictors of alcohol use outcomes in the sample are of note. It is interesting that the two alcohol expectancy subscales that were among the strongest predictors of alcohol use represent different reasons for drinking: drinking to reduce tension and drinking to enhance sociability. It suggests that this heterogeneity exists in the college population and that understanding these different pathways to alcohol outcomes in college students is an important area for further exploration. We also found that among the drinking motives, drinking to cope, and social drinking were both positively correlated with alcohol frequency/quantity and alcohol dependence symptoms. The importance of social and interpersonal motivations for college student alcohol use is found throughout the significant predictors (e.g., extraversion is the personality dimension most strongly associated with alcohol outcomes), which has implications for messaging aimed at reducing risky alcohol use among college students. The fact that peer group deviance is among the strongest predictors of alcohol use, quantity/frequency of use, and alcohol dependence symptoms underscores the importance of peer influences at this developmental stage. The parenting