Descriptive Norms but not Harm Reduction Strategies as a Mediator of Personalized Boosters After a Computerized College Drinking Intervention.

The present study was the first, to our knowledge, to demonstrate a potential mechanism of change in booster interventions. A simple, succinct reminder via email led to reductions in perceptions of how much peers drink, and this led to reductions in alcohol consumption. Our findings support the promise of utilizing brief and easily implemented targeted messaging to enhance the potency of computerized interventions for college drinkers.