Table 3.

Results of the variable used to assess performance and Spearman’s rho correlation test for each set of results against the surgeon’s experience

Surgeon	Noise/Task features (%)	Task features versus total time (seconds)	Standard deviation of torque magnitude for task features (mNm)	Standard deviation of task feature duration (seconds)
1 (expert)	215.53	2.01	86.32	0.37
2 (expert)	310.33	3.22	81.06	0.37
3 (trainee)	375.03	3.35	100.09	0.33
4 (trainee)	399.76	4.17	96.29	0.28
5 (trainee)	539.13	4.66	57.16	0.26
Spearman’s rho correlation coefficient	1.000*	1.000*	−0.200	−0.974*

*Correlation is significant at the 0.01 level (two-tailed).