Brief Peer Supported webSTAIR Compared to Enhanced Wait List

This study will enroll 180 Veterans at a 2:1 ratio where 120 Veterans will be enrolled into a brief transdiagnostic peer supported webSTAIR (BPS webSTAIR) and 60 will be supported into Waitlist. The purpose of the study is to assess the efficacy BPS webSTAIR in regard to four outcomes: reduction in PTSD and depression symptoms (measured by the PCL-5 and PHQ-8, respectively) and improvement in emotion regulation and work and social adjustment (measured by the DERS-16 and WSAS, respectively). The active treatment is a 6-session modular treatment that focuses on learning emotion management skills where Particpants will have 10 weeks to complete the treatment. Assessments will occur three times for those in webSTAIR: baseline, post-treatment (10 weeks after randomization) and 8-week follow-up and twice for those on waitlist (baseline and 10 weeks after randomization). It is hypothesized that BPS WebSTAIR will be superior to the Waitlist condition on all four outcomes. Mixed Effects Models will be used to evaluate the outcomes.