Factors related to burnout symptoms during the internship experience of students from two German universities were examined to explore which of them are most predictive of lower burnout. One sample was from a teacher education program and the other one from a social work program. Independent variables were "subjective achievement", "success in internship", and "quality of supervision" as well as the Preventive Resources Inventory (PRI). The Maslach Burnout Inventory (MBI) served to measure the dependent variable. The results of the analyses showed that success in internship is negatively associated with burnout in internship and is mainly explained by the quality of supervision students experience by their university teachers and internship instructors.