NHTSA VSR | DOT HS 809 884

Table D-1. T-test summary table for Driver Attentiveness (Driver Age).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Age

Attention Category	1	1371.7638	1371.764	7.07	0.0091

Table D-2. T-test summary table for Driver Attentiveness (Male Driver's Age).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Age/Male

Attention Category	1	294.02362	294.0236	1.63	0.2066

Table D-3. T-test summary table for Driver Attentiveness (Female Driver's Age).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Age/Female

Attention Category	1	1031.7459	1031.746	4.9	0.0328

Table D-4. T-test summary table for Driver Attentiveness (Years of Driving Experience).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Experience

Attention Category	1	1482.5217	1482.522	7.6	0.0069

Table D-5. T-test summary table for Driver Attentiveness (Number of Traffic Violations).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Violations

Attention Category	1	18.324647	18.32465	4.9	0.029

Table D-6. T-test summary table for Driver Attentiveness (Number of Accidents).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Accidents

Attention Category	1	0.1762382	0.176238	0.08	0.7764

Table D-7. T-test summary table for Driver Attentiveness (Number of Illnesses).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Illness

Attention Category	1	0.2442525	0.244252	0.12	0.7337

Table D-8. T-test summary table for Driver Attentiveness (Daytime Sleepiness Rating).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Daytime Sleepiness Rating

Attention Category	1	16.615563	16.61556	3.61	0.0602

Table D-9. T-test summary table for Driver Attentiveness (Number of Hours of Sleep).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Number of Hours of Sleep

Attention Category	1	0.0491863	0.049186	0.05	0.8157

Table D-10. T-test summary table for Driver Attentiveness (Life Stress Score).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Life Stress Score

Attention Category	1	9824.6815	9824.682	0.8	0.3754

Table D-11. T-test summary table for driver attentiveness for Driver Behavior Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Aggression

Attention Category	1	123.64634	123.6463	0.57	0.4526

Table D-12. T-test summary table for driver attentiveness Driver Behavior Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Dislike of Driving

Attention Category	1	32.855265	32.85527	0.31	0.5785

Table D-13. T-test summary table for driver attentiveness Driver Behavior Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Hazard Monitoring

Attention Category	1	362.16148	362.1615	2.66	0.1057

Table D-14. T-test summary table for driver attentiveness for Driver Behavior Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Thrill-seeking

Attention Category	1	262.34811	262.3481	0.98	0.325

Table D-15. T-test summary table for driver attentiveness for Driver Behavior Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Drowsiness Proneness

Attention Category	1	202.42993	202.4299	1.15	0.2868

Table D-16. T-test summary table for driver attentiveness and the
Dula Dangerous Driving Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: DDDI

Attention Category	1	117.71573	117.7157	0.94	0.3344

Table D-17. T-test summary table for driver attentiveness the
Dula Dangerous Driving Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Negative Emotion

Attention Category	1	15.387279	15.38728	0.66	0.4181

Table D-18. T-test summary table for driver attentiveness the
Dula Dangerous Driving Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Aggressive Driving

Attention Category	1	2.8125107	2.812511	0.19	0.6652

Table D-19. T-test summary table for driver attentiveness the
Dula Dangerous Driving Questionnaire.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Risky Driving

Attention Category	1	24.275174	24.27517	1.29	0.2587

Table D-20. T-test summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Neuroticism

Attention Category	1	734.107	734.107	2.75	0.1004

Table D-21. T-test summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Extroversion

Attention Category	1	976.01176	976.0118	7.03	0.0093

Table D-22. T-test summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Openness

Attention Category	1	537.18718	537.1872	4.03	0.0473

Table D-23. T-test summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Agreeableness

Attention Category	1	941.01129	941.0113	8.26	0.0049

Table D-24. T-test summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Conscientiousness

Attention Category	1	554.77672	554.7767	6.62	0.0115

Table D-25. T-test summary table for Driver Attentiveness.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Channel Capacity

Attention Category	1	0.4384058	0.438406	0.1	0.7526

Table D-26. T-test summary table for driver attentiveness for the
Waypoint Performance-Based Test.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Preventable Near-Crash/Crash Risk

Attention Category	1	1.0471015	1.047101	2.05	0.1555

Table D-27. T-test summary table for driver attentiveness for the
Waypoint Performance-Based Test.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Expected # of Moving Violations in the Next 5 Years

Attention Category	1	0.0036232	0.003623	0.01	0.9299

Table D-28. T-test summary table for driver attentiveness for the
Waypoint Performance-Based Test.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Expected Seat Belt Use

Attention Category	1	0.0664504	0.06645	0.57	0.4539

Table D-29. T-test summary table for driver attentiveness for the Useful Field of View Performance-Based Test.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: UFOV

Attention Category	1	5.9753086	5.975309	1.39	0.2404

Analysis of Variance Tables for Driver Attentiveness

Table D-30. ANOVA summary table for Driver Attentiveness (Driver Age).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Age

Attention Category	2	2538.22963	1269.11481	6.77	0.0017

Table D-31. ANOVA summary table for Driver Attentiveness (Years of Driving Experience).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Experience

Attention Category	2	2858.6439	1429.322	7.69	0.0008

Table D-32. ANOVA summary table for Driver Attentiveness (Number of Traffic Violations).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Violations

Attention Category	2	38.949862	19.47493	5.54	0.0052

Table D-33. ANOVA summary table for Driver Attentiveness (Number of Accidents).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Accidents

Attention Category	2	19.292393	9.646197	4.88	0.0094

Table D-34. ANOVA summary table for Driver Attentiveness (Daytime Sleepiness Rating).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Daytime Sleepiness Rating

Attention Category	2	35.005781	17.50289	3.8	0.0255

Table D-35. ANOVA summary table for Driver Attentiveness (Hours of Sleep).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Hours of Sleep

Attention Category	2	1.1631296	0.581565	0.65	0.5258

Table D-36. ANOVA summary table for driver attentiveness for
Driver Behavior Questionnaire (Aggression).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Aggression

Attention Category	2	123.14055	61.57028	0.29	0.7522

Table D-37. ANOVA summary table for driver attentiveness for
Driver Behavior Questionnaire (Dislike).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Dislike of Driving

Attention Category	2	37.498264	18.74913	0.17	0.8405

Table D-38. ANOVA summary table for driver attentiveness for
Driver Behavior Questionnaire (Hazard).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Hazard Monitoring

Attention Category	2	791.19383	395.5969	2.9	0.0594

Table D-39. ANOVA summary table for driver attentiveness for
Driver Behavior Questionnaire (Thrill-seeking).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Thrill-seeking

Attention Category	2	224.13074	112.0654	0.41	0.6661

Table D-40. ANOVA summary table for Driver Attentiveness
Driver Behavior Questionnaire (Drowsiness).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Drowsiness Proneness

Attention Category	2	63.21934	31.60967	0.18	0.8377

Table D-41. ANOVA summary table for driver attentiveness for the
Dula Dangerous Driving Inventory (DDDI).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: DDDI

Attention Category	2	368.34603	184.173	1.52	0.2238

Table D-42. ANOVA summary table for driver attentiveness for the
Dula Dangerous Driving Inventory (NE).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Negative Emotional

Attention Category	2	116.1119	58.05595	2.64	0.0762

Table D-43. ANOVA summary table for driver attentiveness for the
Dula Dangerous Driving Inventory (AD).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Aggressive Driving

Attention Category	2	4.8314514	2.415726	0.16	0.8501

Table D-44. ANOVA summary table for driver attentiveness for the
Dula Dangerous Driving Inventory (RD).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Risky Driving

Attention Category	2	46.012434	23.00622	1.21	0.3033

Table D-45. ANOVA summary table for driver attentiveness for the Useful Field of View.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: UFOV

Attention Category	1	23.945798	11.9729	2.47	0.0887

Table D-46. ANOVA summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory (N).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Neuroticism

Attention Category	2	544.88275	272.4414	1.05	0.3549

Table D-47. ANOVA summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory (E).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Extroversion

Attention Category	2	531.03909	265.5195	1.96	0.1461

Table D-48. ANOVA summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory (O).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Openness

Attention Category	2	258.81916	129.4096	0.96	0.3853

Table D-49. ANOVA summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory (A).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Agreeableness

Attention Category	2	819.18283	409.5914	3.77	0.0261

Table D-50. ANOVA summary table for driver attentiveness for the
NEO Five-Factor Personality Inventory (C).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Consciousness

Attention Category	2	486.96632	243.4832	3.05	0.0512

Table D-51. ANOVA summary table for driver attentiveness for the waypoint performance-based test (channel 1).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Channel Capacity

Attention Category	2	6.0800916	3.040046	0.7	0.4968

Table D-52. ANOVA summary table for driver attentiveness for the waypoint performance-based test (pcr).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Preventable Near-Crash/Crash Risk

Attention Category	2	0.7911188	0.395559	0.79	0.4588

Table D-53. ANOVA summary table for driver attentiveness for the waypoint performance-based test (mvr).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Expected # of Moving Violations in the Next 5 Years

Attention Category	2	0.0735243	0.036762	0.08	0.9262

Table D-54. ANOVA summary table for driver attentiveness for the waypoint performance-based test (seatbelt).

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Expected Seat Belt Use

Attention Category	2	0.1220738	0.061037	0.54	0.5835

Analysis of Variance Tables for Chapter 6

Table D-55. ANOVA summary table for eyeglance for total time eyes off the forward roadway.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Total Time

Severity	3	175.797	58.599	33.36	<.0001

Table D-56. ANOVA summary table for eyeglance for number of eyeglances.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Number of Glances

Severity	3	127.34777	42.44926	22.02	<.0001

Table D-57. ANOVA summary table for eyeglance for length of longest glance.

Source of Variation	df	SS	MS	F value	p value*
Dependant Variable: Length of Longest Glance

Severity	3	134.75325	44.91775	34.94	<.0001