Identifying the active ingredients of a behavioral activation-based digital single-session intervention targeting depression.

IF 5.1 2区医学 Q1 PSYCHIATRY

Clinical Psychological Science Pub Date : 2026-08-18 DOI:10.1177/21677026261470339

Arka Ghosh, Benjamin T Kaveladze, Jessica L Schleider

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Abstract

Digital single-session interventions (SSIs) have been shown to be effective in reducing myriad mental health conditions. However, it is unclear which components of digital SSIs drive their therapeutic effects. In this study, we divided a well-evaluated behavioral activation-based SSI into three candidate components-PSYCHOEDUCATION, TESTIMONIALS, and ACTION PLAN-each hypothesized to have independent therapeutic value. We conducted a 2³ factorial experiment (N=889) to evaluate effects of the individual components on depressive symptoms. Our results showed that only the ACTION PLAN candidate component had a significant main effect on depressive symptoms at 2-week (s.m.d=-0.18) and 8-week (s.m.d=-0.12) follow-ups. Additionally, user's perceptions of the intervention's credibility and their expectations of improvement immediately after completing it were significantly associated with a reduction in depressive symptoms at both time points. Our findings offer a more nuanced understanding of which elements within digital SSIs may drive their therapeutic benefits.

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识别基于行为激活的针对抑郁症的数字单次干预的有效成分。

数字单次干预（ssi）已被证明在减少无数心理健康状况方面是有效的。然而，目前尚不清楚数字ssi的哪些成分驱动其治疗效果。在这项研究中，我们将一个评估良好的基于行为激活的SSI分为三个候选成分——心理教育、推荐和行动计划——每个假设都有独立的治疗价值。我们进行了一项23因子实验（N=889）来评估个体成分对抑郁症状的影响。我们的结果显示，在2周（s.m.d=-0.18）和8周（s.m.d=-0.12）随访时，只有行动计划候选成分对抑郁症状有显著的主要影响。此外，用户对干预可信度的感知以及他们在完成干预后立即改善的期望与两个时间点抑郁症状的减少显著相关。我们的研究结果对数字ssi中的哪些元素可能推动其治疗益处提供了更细致的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Clinical Psychological Science Psychology-Clinical Psychology

CiteScore

9.70

自引率

2.10%

发文量

期刊介绍： The Association for Psychological Science’s journal, Clinical Psychological Science, emerges from this confluence to provide readers with the best, most innovative research in clinical psychological science, giving researchers of all stripes a home for their work and a place in which to communicate with a broad audience of both clinical and other scientists.