Brief Mobile Intervention for Prepartying

Study Overview
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Brief Summary
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The primary objective of the research study is to develop and test a prepartying (aka pregaming) specific brief mobile app intervention that is intended to help college students reduce their prepartying drinking behavior. Such behavior has been identified as a major contributor to alcohol-related negative consequences among young people. The investigators will first develop the intervention content based on theory and research supporting mechanisms of change in brief interventions with college students and document normative drinking information from 500 college students for inclusion in the intervention content. Investigators will then beta test the intervention with a sample of 14 heavy drinking college students. Focus group feasibility and acceptability feedback will inform the final intervention content. Investigators will then pilot test the mobile-based intervention in a randomized controlled trial of 500 college students who preparty frequently (n = 250 intervention, n = 250 attention control) and determine the efficacy of the intervention on (1) preventing heavy consumption levels during and after prepartying and on (2) reducing students' global levels of heavy drinking and consequences one and three months post-intervention.

Official Title
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Mobile Application Intervention Targeting the High Risk Drinking Practice of Prepartying

Conditions
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Heavy Drinking

Intervention / Treatment
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* Behavioral: Mobile app prepartying intervention


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: full time undergraduate college student between the ages of 18 and 24 report typically prepartying at least once per week Exclusion Criteria: not meeting inclusion criteria

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 24 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Prepartying mobile app intervention<br>Mobile app intervention | Behavioral: Mobile app prepartying intervention<br>* 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).<br>|
| No Intervention: Control<br>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. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Prepartying frequency | Number of days reported prepartying on the timeline followback | Past month (30 days) | 
| Drinks during prepartying | Average number of drinks reported during prepartying on the timeline followback | Past month (30 days) | 
| Drinking frequency | Number of days reported any drinking on the timeline followback | Past month (30 days) | 
| Drinks on drinking days | Average number of drinks reported during drinking days on the timeline followback | Past month (30 days) | 
| 21-item Brief Young Adult Alcohol Consequences Questionnaire | 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) | Past month (30 days) |