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-1Summary of Participants in NHTSA In-Depth Interviews and Focus Groups byLocation 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-2Analysis 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-3Analysis 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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