Study design
EVENTS, EVENT
The study consisted of eight separate teaching events organised during the academic year 2021–2022. Each event included 40 students randomly assigned to four small groups (n = 10) that received teaching by different methods: teaching in the classroom (live), streamed classroom teaching (live-stream), audio recording (podcast) and video recording (vodcast). Each student participated in the lesson only once.The study design and participant flow are described in Fig. 
Study design