Mobile app intervention

Control participants receive a personalized attention control task (i.e., listing and ranking favorite movies, music, and books), which controls for the time needed by the intervention group to view the intervention material.

The intervention is comprised of a theoretically-informed and empirically-supported, brief, accessible, and personalized intervention to address prepartying drinking. the prepartying intervention app will be tailored toward an individual's personal goals, beliefs (perceptions, expectancies, self-efficacy), and behavior (protective strategies), and focus on the core components of brief interventions that have been cited as constructs that mediate the effects of multiple component intervention programs (e.g., correcting perceived norms, use of protective behavioral strategies, increased self-efficacy, challenging expectancies, feedback on blood alcohol level).

Number of days reported prepartying on the timeline followback

Average number of drinks reported during prepartying on the timeline followback

Number of days reported any drinking on the timeline followback

Average number of drinks reported during drinking days on the timeline followback

Number of 21 assessed alcohol consequences experienced (yes/no). Yes responses are summed to yield a score on this measure. Higher scores indicate experience of a greater number of consequences. Scores range from 0 (no consequences) to 21 (experience of all 21 consequences)