Table 3:

DART score broken down by domain

3-point scale	Expert (24 cases) Median (IQR)	Trainee (12 cases) Median (IQR)	p value
Gesture Selection and Efficacy	2.9 (2.9-3.0)	2.7 (2.5-2.8)	<0.001
Instrument Visualization and Awareness	3.0 (3.0-3.0)	3.0 (3.0-3.0)	1.00
Respect of Tissue Planes	2.9 (2.8-3.0)	2.8 (2.4-3.0)	0.078
Tissue Handling	2.7 (2.4-2.9)	2.5 (2.3-2.9)	0.728
Tissue Retraction	2.9 (2.8-3.0)	2.5 (2.3-2.7)	<0.001
Efficiency	2.9 (2.7-3.0)	2.3 (2.1-2.5)	<0.001
5-point scale	Expert (24 cases) Median (IQR)	Trainee (12 cases) Median (IQR)	p value
Gesture Selection and Efficacy	4.9 (4.8-5.0)	4.4 (4.1-4.6)	<0.001
Instrument Visualization and Awareness	5.0 (5.0-5.0)	5.0 (5.0-5.0)	0.679
Respect of Tissue Planes	4.8 (4.6-5.0)	4.6 (4.1-4.8)	0.010
Tissue Handling	4.4 (3.8-4.9)	4.0 (3.8-4.8)	0.779
Tissue Retraction	4.8 (4.5-5.0)	4.2 (3.6-4.4)	<0.001
Efficiency	4.8 (4.6-4.9)	3.5 (3.2-3.9)	<0.001