In the course of the ÖFEB-Congress 2019 “Presumptuous? On the Relationship of Educational Research, Educational Policy and Educational Practice” in Linz (17th – 20th September 2019) results of the qualitative supporting research were presented for discussion at the research workshop “Do reflection-based school internships promote the professionalization of students in dealing with heterogeneity?” by Dr. Bernhard Rauh, Prof. Dr. Margit Datler and Dr. Jean-Marie Weber. These results were obtained on the basis of RFVT-pir interviews, which examined the reflection competence of students in a pre-/post-comparison group setting.