Buckling Up: Technologies to Increase Seat Belt Use -- Special Report 278 (2004)

Chapter: Appendix B Analysis of Ratings from National Highway Traffic Safety Administration In-Depth Interviews and Focus Groups

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Suggested Citation: "Appendix B Analysis of Ratings from National Highway Traffic Safety Administration In-Depth Interviews and Focus Groups ." Transportation Research Board. 2004. Buckling Up: Technologies to Increase Seat Belt Use -- Special Report 278. Washington, DC: The National Academies Press. doi: 10.17226/10832.
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Appendix B
ANALYSIS OF RATINGS FROM NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION IN-DEPTH INTERVIEWS AND FOCUS GROUPS

Table B-1 Summary of Participants in NHTSA In-Depth Interviews and Focus Groups by Location and User Group

User Category

Phoenix, Ariz.

Portsmouth, N.H.

St. Louis, Mo.

Total

In-depth (individual, in-person)

 

 

 

 

interviews

 

 

 

 

 

Part-time users

25

30

34

89

 

Hard-core nonusers

6

8

3

17

Focus groups of full-time users

0

0

35

35

Total

31

38

72

141
Page 96 Bookmark
Suggested Citation: "Appendix B Analysis of Ratings from National Highway Traffic Safety Administration In-Depth Interviews and Focus Groups ." Transportation Research Board. 2004. Buckling Up: Technologies to Increase Seat Belt Use -- Special Report 278. Washington, DC: The National Academies Press. doi: 10.17226/10832.
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Table B-2 Analysis of Ratings from NHTSA In-Depth Interviews and Focus Groups by Technology, Overall and by User Group(Rating Scale: 1 = Least; 5 = Most) (Percentage of Respondents’ Ratings)

Reported Acceptability

Reported Effectiveness

 

Rating

Ford

Saab

Entertainment Interlock

Transmission Interlock

Rating

Ford

Saab

Entertainment Interlock

Transmission Interlock

Overall (N = 141)

 

 

 

 

 

 

 

 

 

 

1

9

16

27

31

1

6

5

15

4

 

2

6

11

18

14

2

6

5

12

4

 

3

14

16

18

11

3

9

7

13

4

 

4

21

18

14

13

4

21

23

11

4

 

5

50

38

23

30

5

57

60

50

84

Full-Time Users (N = 35)

 

 

 

 

 

 

 

 

 

 

1

0

14

31

29

1

0

6

17

0

 

2

3

14

20

26

2

0

3

17

3

 

3

3

11

29

14

3

0

6

14

0

 

4

14

20

11

9

4

11

26

6

0

 

5

80

40

9

23

5

89

60

46

97

Part-Time Users (N = 89)

 

 

 

 

 

 

 

 

 

 

1

9

11

24

27

1

7

3

14

6

 

2

7

11

17

10

2

7

6

10

4

 

3

20

18

15

11

3

12

7

14

2

 

4

22

18

17

16

4

25

19

12

6

 

5

42

42

28

36

5

49

65

51

82

Hard-Core Nonusers (N = 17)

 

 

 

 

 

 

 

 

 

 

1

29

47

35

59

1

18

12

18

6

 

2

6

6

18

12

2

12

6

12

0

 

3

0

12

12

6

3

12

12

6

18

 

4

29

18

6

6

4

24

35

12

6

 

5

35

18

29

18

5

35

35

53

71

NOTE: The percentages may not total 100 because of rounding.
Page 97 Bookmark
Suggested Citation: "Appendix B Analysis of Ratings from National Highway Traffic Safety Administration In-Depth Interviews and Focus Groups ." Transportation Research Board. 2004. Buckling Up: Technologies to Increase Seat Belt Use -- Special Report 278. Washington, DC: The National Academies Press. doi: 10.17226/10832.
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Table B-3 Analysis of Ratings from NHTSA In-Depth Interviews and Focus Groups by Gender, Age, and Location

Mean Acceptability

Mean Effectiveness

 

Ford

Saab

Entertainment Interlock

Transmission Interlock

 

Ford

Saab

Entertainment Interlock

Transmission Interlock

Analysis by Gender

 

 

 

 

 

 

 

 

 

Male (N = 57)

3.82

3.33

2.89

2.54

Male (N = 57)

3.88

3.98

3.74

4.42

Female (N = 84)

4.08

3.63

2.89

3.26

Female (N = 84)

4.38

4.49

3.64

4.74

Analysis by Age

 

 

 

 

 

 

 

 

 

16-25 (N = 22)

4.00

3.23

3.09

2.59

16-25 (N = 22)

3.73

4.09

4.36

4.32

26-40 (N = 52)

3.60

3.40

2.92

2.54

26-40 (N = 52)

4.08

4.33

4.02

4.52

41-55 (N = 38)

4.18

3.58

2.89

3.21

41-55 (N = 38)

4.21

4.05

3.26

4.74

56 and over (N = 29)

4.38

3.83

2.69

3.72

56 and over (N = 29)

4.65

4.66

3.11

4.83

Analysis by Location

 

 

 

 

 

 

 

 

 

St. Louis (N = 72)

4.18

3.36

2.57

2.76

St. Louis (N = 72)

4.46

4.29

3.61

4.72

Phoenix (N = 31)

3.87

3.77

3.45

3.35

Phoenix (N = 31)

4.05

4.35

4.06

4.42

Portsmouth (N = 38)

3.68

3.58

3.05

3.05

Portsmouth (N = 38)

3.74

4.21

3.50

4.55
Page 95 Bookmark
Suggested Citation: "Appendix B Analysis of Ratings from National Highway Traffic Safety Administration In-Depth Interviews and Focus Groups ." Transportation Research Board. 2004. Buckling Up: Technologies to Increase Seat Belt Use -- Special Report 278. Washington, DC: The National Academies Press. doi: 10.17226/10832.
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Suggested Citation: "Appendix B Analysis of Ratings from National Highway Traffic Safety Administration In-Depth Interviews and Focus Groups ." Transportation Research Board. 2004. Buckling Up: Technologies to Increase Seat Belt Use -- Special Report 278. Washington, DC: The National Academies Press. doi: 10.17226/10832.
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Suggested Citation: "Appendix B Analysis of Ratings from National Highway Traffic Safety Administration In-Depth Interviews and Focus Groups ." Transportation Research Board. 2004. Buckling Up: Technologies to Increase Seat Belt Use -- Special Report 278. Washington, DC: The National Academies Press. doi: 10.17226/10832.
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