Results
In total, 74 OPs attended the meeting. Randomization
assigned half of them to the e-learning and half to the
lecture-based groups. Two OPs in the lecture-based
group were excluded because they arrived too late. The
baseline characteristics of the OPs are described in
Table 1. Only the years of experience as an OP differed
significantly between both groups.
As the baseline scores of both knowledge tests X and Y
(mean 52.9, SD 9.2 and mean 51.5, SD 8.1, respectively)
did not differ significantly, the variable test version was
not included in further analyses. In Table 2, the scores of
the four groups are shown. Although the scores of the