Inclusion Criteria:  Children and adolescents who received partial or full inpatient treatment in the Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy at the University Hospital Tuebingen, Germany (diagnosis irrelevant) and a relevant primary attachment figure (parent or caregiver from a residential group) Optionally teachers from the child's or adolescent's home school Participation in the study by a caregiver from a residential group and/or teachers from the home school always requires the written consent of the child or adolescent and his or her legal guardians Sufficient German language skills  Exclusion Criteria:  Children and adolescents or the attending attachment figure who do not speak or understand the German language In case of acute psychological strain during the course of the study, an emergency presentation will take place at the responsible hospital. In case of an inpatient stay of less than two weeks, the study participation is continued, in case of more than two weeks, discontinued.