Questionnaires
At the time of the final exam, students were asked to fill in paper-based questionnaires. These questionnaires referred to students’ attitudes towards computer-based learning (CbL), their familiarity with the ILIAS platform, satisfaction with the course (including work of the PbL group, satisfaction with the tutor, perceived exam preparation), lecture attendance (either on site or by watching the videos), and the learning time spent apart of the PbL meetings. Items on CbL and tutor qualification were taken from questionnaires used in previous studies (Matthes et al. 