A Metacognitive Group Therapy of Depression and Anxiety in Youth With Autism

The goal of this open clinical trial is to try out and evaluate a group metacognitive treatment protocol, for adolescents aged 15-18 years of age with anxiety and/or depression and an autism diagnosis. The main questions it aims to answer are: 1. How does the recruitment to the study work and what is the retention rate? 2. What is the level of participant compliance? 3. Is the treatment adherence satisfactory, are there any practical problems with treatment delivery? 4. Are the outcome measures and assessment procedures feasible? 5. Do the participants accept the treatment, are there any reports of adverse effects? 6. What are the preliminary effects of the treatment regarding 1. Symptoms of anxiety and/or depression 2. Quality of life 3. Functional impairment 4. Subjective level of stress 5. Central metacognitive processes 7. Are changes in metacognitive processes related to changes in anxiety and depression? The participants will partake in metacognitive group treatment of 10 sessions following an initial screening.