Developing a Digital Intervention for Adolescent Nonsuicidal Self-injury

The digital intervention for NSSI is an app-based intervention consisting of 16 modules (8 focused on internal skills and 8 focused on external sources of support) to be delivered twice weekly for 8 weeks. Modules containing psychoeducation and skill-based practice, and brief assessments. All content is delivered by a highly interactive conversational agent that guides users through the app content via a text-like interface. Psychoeducational content and strategies center on cognitive behavioral principles and support increased knowledge of external sources of support. Brief assessments examine NSSI and use of skills.

The control intervention is an app-based adolescent healthy living intervention consisting of 16 modules containing psychoeducation (e.g., sleep hygiene, water intake, exercise). Modifications will be made to an existing intervention used as a control in prior studies, 1,2 to mitigate potential contraindication for participants with eating disorder comorbidity by replacing nutrition with sun exposure content and an expansion of module content on sleep hygiene and exercise. Like the treatment app, all content in the control app is delivered by a highly interactive conversational agent that guides users through the app content via a text-like interface. Psychoeducational content and psychological strategies delivered center on stress management and healthy living.