Comparisons between the three groups in exploratory phase: fail, indeterminate and pass
Parameters | Fail (n=13), mean (SD) | Indeterminate (n=18), mean (SD) | Pass (n=41), mean (SD) | One-way ANOVA | Bonferroni's multiple testing correction: is p<0.05? | ||
p Value | Fail vs indeterminate | Fail vs pass | Indeterminate vs pass | ||||
SDLP 3 | 0.66 (0.2) | 0.44 (0.13) | 0.37 (0.08) | <0.001 | Yes | Yes | No |
HFS 3 | 0.37 (0.09) | 0.26 (0.06) | 0.27 (0.07) | <0.001 | Yes | Yes | No |
TTC 3 | 1.97 (1.69) | 5.84 (3.34) | 6.67 (4.9) | 0.002 | Yes | Yes | No |
Hw1s 3 | 29.6 (28.9) | 17.5 (16.2) | 13.5 (13) | 0.296 | No | No | No |
Hw 3 | 0.21 (0.23) | 0.393 (0.21) | 0.57 (0.24) | <0.001 | No | Yes | Yes |
Speed 3 | 65 (8) | 67 (3) | 67 (3) | 0.535 | No | No | No |
VeerRT (s) | 2.3 (0.78) | 1.68 (0.33) | 1.38 (0.25) | <0.001 | Yes | Yes | Yes |
BrakeRT (s) | 3.6 (0.6) | 3.5 (0.9) | 2.2 (0.6) | <0.001 | No | Yes | Yes |
BrakeRT, reaction time at the brake event; HFS 3, mean of HFS in epoch 3; Hw 3, minimum headway in epoch 3; Hw1s 3, percentage of time spent with headway under 1 s in epoch 3; SDLP 3, mean SDLP in epoch 3; Speed 3, mean speed in epoch 3; TTC 3, mean of TTC in epoch 3; VeerRT, reaction time at the veer event.