Health Science Department, California State University, Long Beach, California, USA.
Youth & Family Resiliency, University of New Hampshire Cooperative Extension, Durham, New Hampshire, USA.
Subst Use Misuse. 2022;57(12):1854-1863. doi: 10.1080/10826084.2022.2120359. Epub 2022 Sep 11.
The Theory of Triadic Influence (TTI) provides a comprehensive framework for understanding adolescent substance use. We examined mechanisms by which a TTI-guided social-emotional and character development program, (), influences adolescent substance use. Study data come from the -Chicago, longitudinal matched-pairs cluster-randomized control trial. A diverse, dynamic cohort of approximately 1,200 students from 14 low-performing schools were assessed at eight points of time, between grades 3-8, across a six-year period. Students completed scales related to substance use, self-control, deviant peer affiliation, and school attachment, adapted from the Risk Behavior Survey, Social-Emotional and Character Development Scale, Conventional Friends Scale, and People in My Life Scale. After testing the overall effect of on substance use, we used latent growth modeling to assess whether effects on each outcome were mediated by longitudinal changes in three composite measures aligning with the TTIs three streams. : Students in schools reported fewer experiences with drinking, getting drunk, and overall substance use. In the multiple mediator models, significant indirect effects of on substance use via changes in self-control were evident. : Findings are consistent with theory and past research suggesting the influence of self-control on youth substance use. Future studies should include implementation in different settings and additional theory-based measures.Trial RegistrationThis trial is registered at ClinicalTrials.gov NCT01025674.
三元影响理论（TTI）为理解青少年物质使用提供了一个全面的框架。我们研究了一种 TTI 指导的社会情感和性格发展计划（）如何影响青少年物质使用的机制。研究数据来自于 - 芝加哥，纵向匹配对群随机对照试验。一个多样化、动态的大约 1200 名学生群体来自 14 所表现不佳的学校，在 3-8 年级的六个学年期间，分 8 个时间点进行评估。学生们完成了与物质使用、自我控制、偏差同伴关系和学校依恋相关的量表，这些量表改编自风险行为调查、社会情感和性格发展量表、传统朋友量表和我生命中的人量表。在测试了对物质使用的整体影响后，我们使用潜在增长模型来评估对每种结果的影响是否通过与 TTIs 三个流一致的三个综合衡量标准的纵向变化来介导。：学校的学生报告了更少的饮酒、醉酒和总体物质使用经历。在多重中介模型中，通过自我控制的变化，对物质使用的影响具有显著的间接效应。：研究结果与理论和过去的研究一致，表明自我控制对青少年物质使用的影响。未来的研究应该包括在不同的环境中实施，并增加基于理论的措施。试验注册本试验在 ClinicalTrials.gov 注册，编号为 NCT01025674。
