Table 4 Results of construct validity for each group
Novices (N = 17) | Intermediates (N = 35) | Experts (N = 17) | p value | |
|---|---|---|---|---|
Case 1 | ||||
Time (s) | 203.40, IQR 172.65–302.65 | 161.90, IQR 123.00–180.40 | 118.70, IQR 103.80–146.60 | .001 |
Path length (mm) | 647.30, IQR 583.55–946.05 | 498.60, IQR 412.60–553.80 | 462.20, IQR 383.05–545.60 | .001 |
Trauma (number) | 11.00, IQR 5.50–17.00 | 7.00, IQR 2.00–9.00 | 6.00, IQR 3.00–8.50 | .033 |
Patient comfort (10-point scale) | 6.90, IQR 6.80–7.80 | 7.10, IQR 6.70–7.70 | 7.30, IQR 6.75–7.70 | .831 |
Distension medium (mL) | 558.90, IQR 267.15–791.40 | 600.20, IQR 449.95–905.55 | 489.60, IQR 193.08–571.15 | .102 |
Correct placement left/right (percentage) | 94.1/82.4 | 91.4/91.4 | 82.4/94.1 | .481/.481 |
Case 2 | ||||
Time (s) | 224.90, IQR 180.30–279.25 | 177.60, IQR 150.30–197.40 | 136.70, IQR 120.35–174.30 | .001 |
Path length (mm) | 665.40, IQR 586.40–837.85 | 538.70, IQR 504.90–626.20 | 561.40, IQR 495.95–677.75 | .009 |
Trauma (number) | 8.00, IQR 4.50–28.00 | 10.00, IQR 5.00–28.00 | 13.00, IQR 6.50–25.50 | .791 |
Patient comfort (10-point scale) | 7.90, IQR 6.60–8.10 | 7.20, IQR 6.20–8.00 | 7.30, IQR 7.00–8.10 | .377 |
Distension medium (mL) | 671.45, IQR 180.55–831.40 | 836.50, IQR 503.45–1141.63 | 635.55, IQR 438.48–873.38 | .173 |
Correct placement left/right (percentage) | 100.0/100.0 | 97.1/100.0 | 100.0/100.0 | .615/1.00 |