Author ORCID Identifier

Defense Date


Document Type


Degree Name

Master of Science



First Advisor

Dr. Danielle M. Dick

Second Advisor

Dr. Linda Hancock

Third Advisor

Dr. Bruce Rybarczyk


The purpose of this study was to evaluate a brief, web-based alcohol prevention intervention program as a universal approach to addressing the range of alcohol behaviors present on college campuses. The sample of freshman college students recruited from Spit for Science (Dick et al., 2014) included 153 intervention participants, and 151 control participants matched on demographics and baseline alcohol variables. Hierarchical multiple regression, logistic regression, and moderated multiple regression were used to compare intervention and control participants on post-intervention alcohol variables. Treatment predicted lower alcohol use disorder (AUD) symptoms, particularly among baseline drinkers. For non-drinkers, the intervention was associated with a decreased likelihood of alcohol initiation. Family history moderated the intervention’s effect on drinks per occasion and AUD symptoms, with family history positive individuals responding better to the intervention. Readiness-to-change and concern for one’s drinking were not supported as moderators, suggesting more research is needed to identify mechanisms of change.


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