APPENDIX F—ANOVA TABLES FOR POST-DRIVE QUESTIONNAIRE
Table 42. ANOVA summary table for the Likert-type scale on detection.
| Source |
DF |
SS |
MS |
F value |
P value |
| Between |
| Age |
2 |
1.4 |
0.7 |
0.3 |
0.7487 |
| Subject/Age |
12 |
29.0 |
2.4 |
|
|
| |
| Within |
| VES |
3 |
17.9 |
6.0 |
7.63 |
0.0004 * |
| VES by Age |
6 |
5.4 |
0.9 |
1.14 |
0.3585 |
| VES by Subject/Age |
36 |
28.2 |
0.8 |
|
|
| TOTAL |
59 |
81.9 |
|
|
|
Table 43. ANOVA summary table for the Likert-type scale on recognition.
| Source |
DF |
SS |
MS |
F value |
P value |
| TOTAL |
59 |
82.7 |
|
|
|
| Between |
| Age |
2 |
1.7 |
0.9 |
0.42 |
0.6636 |
| Subject/Age |
12 |
24.5 |
2.0 |
|
|
| |
| Within |
| VES |
3 |
19.0 |
6.3 |
7.06 |
0.0008 * |
| VES by Age |
6 |
5.2 |
0.9 |
0.97 |
0.4619 |
| VES by Subject/Age |
36 |
32.3 |
0.9 |
|
|
Table 44. ANOVA summary table for the Likert-type scale on lane-keeping assistance.
| Statement 3: Lane-keeping assistance |
| Source |
DF |
SS |
MS |
F value |
P value |
| TOTAL |
59 |
135.7 |
|
|
|
| Between |
| Age |
2 |
35.8 |
17.9 |
3.95 |
0.048 * |
| Subject/Age |
12 |
54.4 |
4.5 |
|
|
| |
| Within |
| VES |
3 |
6.3 |
2.1 |
2.11 |
0.1158 |
| VES by Age |
6 |
3.6 |
0.6 |
0.61 |
0.7188 |
| VES by Subject/Age |
36 |
35.6 |
1.0 |
|
|
Table 45. ANOVA summary table for the Likert-type scale on roadway direction.
| Statement 4: Roadway direction |
| Source |
DF |
SS |
MS |
F value |
P value |
| TOTAL |
59 |
114.6 |
|
|
|
| Between |
| Age |
2 |
30.8 |
15.4 |
5.29 |
0.0226 * |
| Subject/Age |
12 |
35.0 |
2.9 |
|
|
| |
| Within |
| VES |
3 |
6.3 |
2.1 |
2.01 |
0.1306 |
| VES by Age |
6 |
4.6 |
0.8 |
0.74 |
0.6244 |
| VES by Subject/Age |
36 |
37.8 |
1.1 |
|
|
Table 46. ANOVA summary table for the Likert-type scale on visual discomfort.
| Statement 5: Visual discomfort |
| Source |
DF |
SS |
MS |
F value |
P value |
| TOTAL |
59 |
163.7 |
|
|
|
| Between |
| Age |
2 |
3.6 |
1.8 |
0.21 |
0.8126 |
| Subject/Age |
12 |
102.3 |
8.5 |
|
|
| |
| Within |
| VES |
3 |
9.5 |
3.2 |
2.91 |
0.0479 * |
| VES by Age |
6 |
8.9 |
1.5 |
1.36 |
0.2555 |
| VES by Subject/Age |
36 |
39.3 |
1.1 |
|
|
Table 47. ANOVA summary table for the Likert-type scale on overall safety rating.
| Statement 7: Overall safety rating |
| Source |
DF |
SS |
MS |
F value |
P value |
| TOTAL |
59 |
140.9 |
|
|
|
| Between |
| Age |
2 |
3.7 |
1.9 |
0.28 |
0.7598 |
| Subject/Age |
12 |
79.7 |
6.6 |
|
|
| |
| Within |
| VES |
3 |
6.9 |
2.3 |
1.75 |
0.1739 |
| VES by Age |
6 |
3.1 |
0.5 |
0.39 |
0.8822 |
| VES by Subject/Age |
36 |
47.5 |
1.3 |
|
|
Table 48. ANOVA summary table for the Likert-type scale on overall VES evaluation.
| Statement 8: Overall VES evaluation (better than regular) |
| Source |
DF |
SS |
MS |
F value |
P value |
| TOTAL |
59 |
151.7 |
|
|
|
| Between |
| Age |
2 |
6.6 |
3.3 |
0.47 |
0.6374 |
| Subject/Age |
12 |
85.1 |
7.1 |
|
|
| |
| Within |
| VES |
3 |
8.9 |
3.0 |
2.29 |
0.0953 |
| VES by Age |
6 |
4.2 |
0.7 |
0.53 |
0.7795 |
| VES by Subject/Age |
36 |
46.9 |
1.3 |
|
|
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