OBJECTIVE Few online interventions targeting anxiety and depression in university students are designed for universal delivery, and none for group-level delivery. This randomized controlled trial (NCT No. 04361045) examined the effectiveness of such a prevention program. METHOD StriveWeekly is a web-based intervention designed with weekly self-guided skill modules (e.g., behavioral activation) that are synchronously delivered to all users. Student participants (n = 1,607) were recruited from one large public university, and 65.4% had no prior mental health service use. Participants were randomly assigned to 8 weeks of StriveWeekly (n = 804) or a waitlist condition (n = 803). Participants completed web-based surveys at baseline, posttest, and 3-month follow-up. The primary outcome was the self-reported Depression Anxiety and Stress Scale-21. RESULTS Piecewise linear mixed-effect models found significant group by time interactions for depression (t = -3.05, p = .002), anxiety (t = -3.01, p = .003), and total symptoms (t = -3.34, p < .001). Relative to the waitlist, students assigned to StriveWeekly improved more from baseline to posttest (between-group d = 0.18-0.21). These small effects were maintained through follow-up, and subsequently replicated by the original waitlist. The intervention was initiated by 73.0% of students in the StriveWeekly condition (modules completed: M = 3.72), and 71.6% of all posttest respondents rated the intervention highly. CONCLUSION Findings supported StriveWeekly's effectiveness for large scale indicated prevention of anxiety and depression symptoms in university students. However, further development and research are still needed, as not all students used the intervention, reported satisfaction, or experienced improvement. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

中文翻译：

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针对预防大学生焦虑和抑郁的网络项目的随机对照试验。

目标 针对大学生焦虑和抑郁的在线干预措施很少是针对普遍实施而设计的，更没有针对团体层面的实施。这项随机对照试验（NCT 编号 04361045）检验了此类预防计划的有效性。方法 StriveWeekly 是一种基于网络的干预措施，设计有每周同步交付给所有用户的自我指导技能模块（例如行为激活）。学生参与者 (n = 1,607) 是从一所大型公立大学招募的，65.4% 的人之前没有使用过心理健康服务。参与者被随机分配到为期 8 周的 StriveWeekly (n = 804) 或候补名单条件 (n = 803)。参与者在基线、后测试和 3 个月的随访中完成了基于网络的调查。主要结果是自我报告的抑郁、焦虑和压力量表 21。结果 分段线性混合效应模型发现抑郁症 (t = -3.05, p = .002)、焦虑症 (t = -3.01, p = .003) 和总症状 (t = -3.34, p) 之间存在显着的按时间交互作用< .001)。相对于候补名单，分配到 StriveWeekly 的学生从基线到后测试的进步更大（组间 d = 0.18-0.21）。这些小的影响通过后续行动得以维持，并随后被原来的候补名单所复制。73.0% 处于 StriveWeekly 状态的学生发起了干预措施（完成的模块：M = 3.72），所有后测受访者中 71.6% 的受访者对干预措施给予了高度评价。结论 研究结果支持了 StriveWeekly 大规模预防大学生焦虑和抑郁症状的有效性。然而，仍然需要进一步的开发和研究，因为并非所有学生都使用了干预措施、表示满意或经历了进步。（PsycInfo 数据库记录 (c) 2023 APA，保留所有权利）。