The goal of this randomized clinical trial is to investigate if a brief, written intervention for posttraumatic stress disorder (PTSD), Written Exposure Therapy (WET), is non-inferior compared to an evidenced-based behavioral therapy, Cognitive Processing Therapy-Cognition only (CPT-C), in the treatment of PTSD in active duty military men and women with a diagnosis of PTSD who have deployed in support of a post-9/11. The primary study outcome is change in symptom severity as assessed by the Clinician Administered PTSD Scale for Diagnostic and Statistical Manual-5 edition (CAPS-5). Independent assessors evaluated participants using the CAPS-5 at baseline, 10-, 20-, and 30-week after the first treatment session.
