Table 1.
Efficiency summary
| Task Type | N | Mean task completion time (s) | Max task completion time (s) | Min task completion time (s) | Difference in completion time SR vs KBM (%) | Z | Wilcoxon P-value | 95% CI |
|---|---|---|---|---|---|---|---|---|
| KBM – simple and complex | 65 | 140.09 | 257.63 | 49.38 | 129.56, 151.45 | |||
| SR – simple and complex | 60 | 165.46 | 327.45 | 71.67 | 150.56, 180.37 | |||
| Total KBM vs total SR | 58 | 118.11 | −3.302 | 0.001 | 9.87, 33.91 | |||
| Simple task KBM | 34 | 112.38 | 214.99 | 49.38 | 103.15, 122.42 | |||
| Simple task SR | 31 | 131.44 | 285.91 | 71.67 | 117.01, 146.94 | |||
| Simple task KBM vs simple task SR | 31 | 116.95 | −1.960 | 0.050 | −0.07, 30.50 | |||
| Complex task KBM | 31 | 170.48 | 257.63 | 110.31 | 157.26, 183.80 | |||
| Complex task SR | 29 | 201.84 | 327.45 | 138.87 | 185.71, 219.26 | |||
| Complex task KBM vs complex task SR | 27 | 118.40 | −2.643 | 0.009 | 9.61¸47.73 | |||
| Tasks with interruptions | ||||||||
| Simple task KBM with interrupt | 34 | 112.22 | 247.26 | 60.40 | 101.22, 124.77 | |||
| Simple task KBM vs simple task KBM with interrupt | 34 | −99.85 | −0.710 | 0.478 | −13.19, 7.69 | |||
| Simple task SR with interrupt | 32 | 134.41 | 250.20 | 67.69 | 119.78, 149.08 | |||
| Simple task SR vs simple task SR with interrupt | 29 | 102.26 | −0.465 | 0.642 | −19.75, 28.12 | |||
| Complex task KBM with interrupt | 31 | 186.65 | 355.90 | 102.94 | 168.91, 207.55 | |||
| Complex task KBM vs complex task KBM with interrupt | 29 | 109.49 | −0.465 | 0.642 | −3.39, 33.60 | |||
| Complex task SR with interrupt | 31 | 216.45 | 345.70 | 133.13 | 196.82, 238.76 | |||
| Complex task SR vs complex Task SR with interrupt | 26 | 107.24 | −1.664 | 0.096 | −1.96, 49.12 | |||