1. Research Institute, Modum Bad Psychiatric Centre Vikersund Norway
2. Department of Psychology University of Oslo Oslo Norway
3. Division of Mental Health and Addiction, Regional Department for Eating Disorders Oslo University Hospital Oslo Norway
4. Division of Mental Health and Addiction, Institute of Clinical Medicine University of Oslo Oslo Norway
5. Department of Psychology, Faculty of Health Sciences UiT ‐ The Arctic University of Norway Tromsø Norway