In "Landesklinikum Mauer" patient data were collected from more than 1000 people over the last 10 years - with the aim of quality management. Three questionnaires were designed specifically for this project: 1. Self-assessment (patient) immediately after treatment 2. External assessment (member of the treating team) 3. Self-assessment (patient) one year after treatment The aim of this study is the analysis of this data to answer the following questions: 1. How satisfied are patients with the psychotherapeutic treatment? 2. In which problem areas do patients experience changes in the course of psychotherapy? 3. Are there "Sleeper-effects"? 4. Are there differences between external assessment and self-assessment? 5. Which external factors relate to perceived changes? 6. Are there differences in the perceived changes depending on the survey year?