Table 2.
F values, degrees of freedom, p values and holm corrected post hoc comparisons with corrections relative to time-on-task and handedness, for driving simulator variables derived from the mixed effects models.
| Outcome variable | Predictor | F | df | p | Significant post hoc comparisons |
|---|---|---|---|---|---|
| Lane variability | Time | 7.81 | 1, 40 | .008 | 1st < 2nd |
| Handedness | .218 | 1, 40 | .643 | ||
| Time * handedness | 1.40 | 1, 40 | .244 | ||
| Time in safe zone | Time | .481 | 1, 40 | .492 | |
| Handedness | .047 | 1, 40 | .829 | ||
| Time * handedness | 1.31 | 1, 40 | .260 | ||
| Reaction time to stimuli | Time | 10.2 | 1, 3397.6 | .001 | 1st > 2nd |
| Location | 130.9 | 5, 3399.4 | < .001 | L1 > L2, L3, L4, L5; L3 < L2, L5; L4 < L2, L5; L6 > L1, L2, L4, L5 | |
| Handedness | 2.15 | 1, 39.8 | .150 | ||
| Time * location | .720 | 5, 3397.4 | .609 | ||
| Time * handedness | 4.31 | 1, 3397.6 | .038 | 1st RH < 2nd RH | |
| Location * handedness | .714 | 5, 3399.4 | .613 | ||
| Time * location * handedness | 3.49 | 5, 3397.4 | .004 | ||
| Omissions | Time | 6.19 | 1, 440 | .013 | |
| Location | 27.36 | 5, 440 | < .001 | L1 > L2, L3, L4, L5; L6 > L2, L3, L4, L5 | |
| Handedness | .23 | 1, 40 | .632 | ||
| Time * location | 2.41 | 5, 440 | .049 | 1st L6 > 1st L2, 1st L3, 1st L4, 1st L5; 2nd L6 > L2, 2nd L3, 2nd L4, 2nd L5; 1st L1 > 1st L3, 1st L4, 1st L5; 2nd L1 > 2nd L2, 2nd L4, 2nd L5 | |
| Time * handedness | .05 | 1, 440 | .816 | ||
| Location * handedness | 7.51 | 5, 440 | < .001 | RH L6 > RH L3, RH L4, RH L5, LH L6; LH L2 < LH L6 | |
| Time * location * handedness | .97 | 5, 440 | .432 |
Location is an additional predictor in the reaction time and omissions to peripheral stimuli models.
LH = left-handers, RH = right-handers. For post hoc analyses < and > indicate the direction of the effect (e.g., LH 1st < LH 2nd refers to left-handers’ performance in the first half of the drive is lower than that of left-handers’ performance in the second half of drive). L1 = location 1, L2, location 2, L3 = location 3, L4 = location 4, L5 = location 5, L6 = location 6. Only relevant post hoc comparisons reaching statistical significance (p < .05) following corrections for multiple comparisons are reported for interactions.