Figure 4
Comparison of three groups in post-test score and change in score. Theory test (full score: 18): no significant difference in post-test score or change in score between three groups. Lab test (full score: 30) significantly different between three groups in post-test score and change in score (Kruskal-Walis H). Participants in the 3D printed skull group performed better than the other two groups considering post-test score and change in score, while there was no significant difference between cadaveric and atlas group (Mann-Whitney). Total score (full score: 48): Significant difference in post-test scores but not in change in scores between three groups (Kruskal-Walis H). 3D printed skull model group performed better than atlas group in post-test scores; however, no significant difference was found in other comparisons (Mann-Whitney). *p < 0.05. Specific p-values are listed in Table 2.
