At the end of the intervention period, a clinical interview will be conducted through telephone where a PTSD diagnosis (CAPS-5 interview; Weathers, Blake, Schnurr, Kaloupek, Marx, & Keane ,2013) and other clinical symptoms will be assessed. The interview will be delivered by graduate-level clinical psychology students trained by a senior clinical psychologist. Participants from the control intervention group who will have PTSD in the first diagnostic point will be offered to participate in the condition that has shown the most effective improvement.