Fig. 2

Study design: Distribution of 26 teaching hours (45 min encounter) of an intensive course in emergency medicine over 4.5 days (spaced version, light grey boxes), and 3.0 days (massed version, dark grey boxes). The massed course version was delivered with three different time intervals between course and assessment: 8 days, 3 days, and 0 days. KF-Test: “Key-Feature test”