Table 2.

Results of the Likert-scale questionnaire after each of the 13 training cases.

Likert (7-point) questions	Score in the VRa environment (n=78), mean (SD)	Score in the DSb environment (n=78), mean (SD)	Difference, mean (SD)
I learned something through this segmentation process.	5.7 (1.2)	4.9 (1.2)	0.8 (1.2)
I feel exhausted after the segmentation process.	4.4 (1.5)	5.2 (1.5)	−0.8 (1.8)
I had to repeat steps during segmentation.	4.3 (1.6)	5.0 (1.6)	−0.7 (1.6)
I consider this fibula to be adequately segmented.	5.8 (1.1)	5.1 (1.2)	0.7 (1.2)
I find this iliac crest to be adequately segmented.	5.5 (1.1)	4.0 (1.6)	1.5 (1.6)
I was able to orient myself spatially well during segmentation.	6.3 (0.7)	4.4 (1.3)	1.9 (1.7)

^aVR: virtual reality.

^bDS: desktop screen.