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Table 4.
Difference in performance under the opaque dome (OD) as measured by percent improvement between subsequent groups with higher level of expertise of subjects.
| Task in OD | Novice time (min) |
Beginner time (min) |
Intermediate time (min) |
Advance time (min) |
Novice to Beginner difference |
Beginner to Intermediate difference |
Intermediate to Advance difference |
|||
|---|---|---|---|---|---|---|---|---|---|---|
| Median (range) | Median (range) | Median (range) | Median (range) | % improv | p value | % improv | p value | % improv | p value | |
| Maze | 166 (124–360) | 135.5 (86–163) | 100 (88–125) | 97.5 (78–130) | 75 | 0.273 | 67 | 0.593 | 33 | 0.285 |
| Probing | 684 (325–960) | 254.5 (240–583) | 228 (172–401) | 260 (187–326) | 100 | 0.068 | 67 | 1.00 | 67 | 1.00 |
| Object extraction | 319 (227–679) | 240 (202–309) | 171 (130–186) | 143.5 (106–194) | 75 | 0.144 | 100 | 0.109 | 67 | 0.285 |
| Object insertion | 630 (456–935) | 392 (351–600) | 250 (235–322) | 270 (225–340) | 75 | 0.144 | 100 | 0.102 | 67 | 1.00 |
| Meniscus resection | 364 (203–640) | 204 (178–249) | 82 (76–270) | 94 (37–118) | 100 | 0.068 | 67 | 0.285 | 67 | 0.285 |
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