Digital Motivational Behavioral Economic Intervention to Reduce Risky Drinking Among Community-Dwelling Emerging Adults

项目总结 减少大学生危险饮酒的简短动机干预(BMI)是众所周知的，但 居住在贫困社区且不是全日制大学的新兴成人(EA)高风险饮酒者的需求 学生们一直被忽视。他们往往更难获得有价值的机会，成年人 角色，以及提供大量饮酒的亲社会替代方案的活动。当与缩短的 许多环境评估机构的典型时间范围，这表明需要进行干预，不仅要增强动力， 减少饮酒，但引导EA从事大量饮酒的替代方案，并将其行为导向 更长期的积极目标。在行为经济学(BE)的指导下，拟议的研究将传播和 评估将BMI元素与无物质活动相结合的简短激励性BE干预 会议显示，通过增加未来的导向和对亲社会替代方案的参与，减少了饮酒。 干预将使用适用于运营社交网络的EA的数字平台进行 通过这样的交流。因为同伴影响物质的使用，所以同伴驱动的抽样方法 (受访者驱动抽样[RDS])将用于招募500名年龄在18-28岁的社区居住的EA 将干预措施与教育/评估对照进行比较的整群随机对照试验 条件。饮酒行为和问题，作为结果预测因素，社交网络将在 基线以及1、6和12个月的随访。干预效果和行为改变机制将是 检查过了。酒精需求减少和延迟折扣，以及未来干预后有利的转变 定向，无物质与涉及物质的活动，以及保护性行为策略的使用 减少与饮酒相关的危害被预测为调解干预效果。社交网络分析将评估 干预是否削弱了个人饮酒的网络推广。这项研究将是第一个测试 基于网络的戒酒干预侧重于BE原则，并使用数字RDS到达社区- 需要干预的住房环境。这项研究将翻译和测试作为变化的调解人和调解人，以及 数字干预在覆盖服务不足的社区风险群体方面具有很高的潜力和可扩展性。

PROJECT SUMMARY Brief motivational interventions (BMIs) to reduce risky drinking in college students are well established, but the needs of emerging adult (EA) risky drinkers who live in disadvantaged communities and are not fulltime college students have been neglected. They tend to have more constrained access to rewarding opportunities, adult roles, and activities that present pro-social alternatives to heavy drinking. When coupled with the foreshortened time horizons typical of many EAs, this suggests the need for interventions that not only enhance motivation to reduce drinking, but guide EAs to engage in alternatives to heavy drinking and orient their behavior toward longer-term positive goals. Guided by behavioral economics (BE), the proposed study will disseminate and evaluate a brief motivational BE intervention that combines BMI elements with the Substance Free Activity Session shown to reduce drinking by increasing future orientation and engagement in pro-social alternatives. The intervention will be delivered using a digital platform appropriate for EAs whose social networks operate through such communications. Because peers influence substance use, a peer-driven sampling method (Respondent Driven Sampling [RDS]) will be used to recruit 500 community-dwelling EAs ages 18-28 for a cluster randomized controlled trial that compares the intervention with an educational/assessment control condition. Drinking practices and problems, BE outcome predictors, and social networks will be assessed at baseline and at 1, 6, and 12-month follow-ups. Intervention efficacy and behavior change mechanisms will be examined. Reduced alcohol demand and delay discounting and favorable post-intervention shifts in future orientation, substance-free vs. substance-involved activities, and use of protective behavioral strategies to reduce drinking-related harms are predicted to mediate intervention effects. Social network analysis will assess whether the intervention attenuates network promotion of individual drinking. The study will be the first to test a web-based alcohol reduction intervention focused on BE principles and to use digital RDS to reach community- dwelling EAs for intervention. The study will translate and test BE mediators and moderators of change, and the digital intervention has high potential for reach and scalability with under-served community risk groups.