Fig. 1

Chronological order of different events and measures from winter term 2014/15 (WT 14/15) until winter term 2016/17 (WT 16/17). Peer lecturer coaching and audience response system (ARS) evaluations were performed after each lecture during the ST 15 and WT 15/16. The final end of term exam was followed by the online evaluation each term (# 1–4). Changes to the lecture plan, learning objectives and the final exam were implemented after the 2nd joint meeting in summer term (ST) 15, therefore WT 15/16 is displayed in a different color. No further changes were implemented in the following terms. Details regarding the changes can be found in the text