Text in German. The curative education department, as the evaluation body for children's behavior, unfolded its power in cooperation with the authorities that consulted it. Thousands of minors were examined from 1911 to 1949 and as a result were often affected by drastic changes in their lives. From 1911 onwards, parents, youth welfare offices, schools, courts and doctors regularly turned to the newly founded curative education department if they wanted their protégés to be assessed. Stays of one week to several months should ensure the assessment of behavior and its best possible promotion or correction through observation and testing. Ultimately implementing this was the task of the institutions and people who received the discharged patients together with a recommendation for action. Shaped by the medical leaders, conceptual approaches changed in the first half of the 20th century, but not the functioning, tasks and cooperation of the department. It operated as a clinical-scientific guiding star in the Viennese welfare system.