Lewis, C., Roberts, N., Bethell, A., et al. (2018). Internet-Based Cognitive and Behavioural Therapies for Post-Traumatic Stress Disorder (PTSD) in Adults. Cochrane Database of Systematic Reviews.
This review was conducted to assess the effects of Internet-based cognitive and behavioral therapy (I-C/BT), and included 10 studies with 720 participants: 8 of the studies compared I‐C/BT delivered with therapist guidance to a wait list control; 2 studies compared guided I‐C/BT with I‐non‐C/BT. The authors found some beneficial effects of I-C/BT for PTSD, but note that the quality of the evidence is low due to the small number of included studies.