Figure 5.

Post-course evaluation of various resources. After course completion, participants from 2015–2016 rated the usefulness of various resources from 0 to 5 for learning ultrasound (with 0 corresponding to not useful at all, and 5 corresponding to very useful). Instructor demonstration was found to be the most useful, and online materials the least useful (P<0.01). Resources and number of respondents (n) lie on the X-axis. Mean scores for each resource type lie above the standard error bars.