Group-based Stabilization and Skill Training for Patients With Lasting Posttraumatic Reactions in Mental Health Care

Inclusion Criteria: * Receiving treatment in ordinary out-patient clinics * Having been exposed to or witnessing to traumatic event(s) defined as "one or several extremely threatening or horrific events or series of events or situations being of such a character which is likely to overwhelming distress in almost anyone in a similar situation", measured by Stressful Life Events Screening Questionnaire * Presenting with posttraumatic reactions such as hyperarousal, avoidance, intrusions, emotional dysregulation or interpersonal difficulties. * Symptom duration for a minimum of six months. * Understand and speak Norwegian to an extent that is required to participate in a stabilization- and skill-training group. Exclusion Criteria: * Active psychotic symptoms. * Substance or drug addiction or abuse. * High suicidal risk considered by the individual therapist. * Having participated in the course previously.