Test | Mean (SE) | t Test | Significance | Range of differences | |
---|---|---|---|---|---|
Undilated | Dilated | (two tailed) | (dilated-undilated) | ||
Pupil diameter | 2.96 (0.12) | 6.66 (0.22) | −14.3 | 0.000 | 2 to 5.5 |
HCVA | −0.10 (0.02) | −0.06 (0.02) | −5.84 | 0.000 | 0 to +0.1 |
Pelli-Robson | 1.82 (0.02) | 1.78 (0.02) | 2.33 | 0.03 | +0.05 to −0.20 |
Berkeley glare | 0.19 (0.78) | 4.50 (1.09) | −3.12 | 0.007 | −4 to +15 |
Obstacles seen | 8.81 (0.10) | 8.06 (0.27) | 3.00 | 0.009 | 0 to −4 |
Obstacles hit | 0.25 (0.11) | 1.19 (0.33) | −3.03 | 0.008 | 0 to +4 |
Correct gap perception | 7.19 (0.42) | 7.38 (0.43) | −0.59 | NS | −3 to 2 |
Cone gap hit | 0.88 (0.26) | 1.44 (0.34) | −1.65 | NS | −1 to +4 |
Road signs seen | 54.31 (1.63) | 54.5 (1.45) | −0.17 | NS | +8 to −10 |
Course time | 364.9 (10.2) | 376.5 (10.3) | −1.35 | NS | −51 to +71 |
Reaction lights seen | 12.00 (0.39) | 12.25 (0.38) | −0.47 | NS | +4 to −3 |
Mean man cones hit | 0.94 (0.24) | 0.72 (0.21) | 1.10 | NS | −1.5 to +1.0 |
Mean man cone time | 38.15 (3.74) | 38.02 (3.54) | 0.10 | NS | −9 to +14.0 |