Table 2: Results of the two student groups at the beginning of the course (Pre-test), after the self-learning phase (Post-test1) and after the presence meeting (Post-test2). Maximum: 20 points. 3rd year students n=36, 5th year students n=33. P = significance by the t-test comparing the test-results to the previous results. 5th students did not take part in the presence meeting.