Module 3: Grasping

Proficiency = 111.5076 − 2.9354 Left instrument path length − 0.0013 Left instrument angular path −0.0632 Left instrument misses − 1.2948 Right instrument path length − 0.2603 Right instrument time −0.1122 Right instrument misses − 0.1343 Maximum damage

Variables Measured and Criterion Percentile Values
Variable	10	25	50	75	90
Left instrument path length	2.965	2.764	2.424	1.778	1.608
Left instrument angular path	701.949	626.146	499.675	399.267	379.985
Left instrument time	61.518	59.456	50.205	34.913	31.722
Left instrument misses	0	0	0	0	0
Right instrument path length	2.765	2.429	2.173	1.891	1.613
Right instrument angular path	496.771	424.834	331.345	305.61	295.78
Right instrument time	57.939	54.327	39.816	35.297	31.411
Right instrument misses	0	0	0	0	0
Tissue damage	5	5	4	2	1
Maximum damage	8.207	5.748	4.453	3.055	1.43
Proficiency score	80.914	84.84	88.821	92.713	95.749
Means ± Standard Deviations for Each Variable
Variable	−1.5	−1	0	+1	+1.5
Left instrument path length	1.37	1.689	2.327	2.965	3.284
Left instrument angular path	315.689	382.294	515.504	648.713	715.318
Left instrument time	28.369	34.912	47.997	61.083	67.626
Left instrument misses	0	0	0	0	0
Right instrument path length	1.509	1.727	2.165	2.603	2.821
Right instrument angular path	238.458	281.731	368.278	454.825	498.099
Right instrument time	24.833	31.098	43.63	56.161	62.426
Right instrument misses	0	0	0	0	0
Tissue damage	−1.05	0.633	4	7.367	9.05
Maximum damage	0.244	1.771	4.824	7.877	9.404
Proficiency score	79.908	82.833	88.683	94.533	97.458