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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: J Safety Res. 2018 Dec 23;68:173–179. doi: 10.1016/j.jsr.2018.12.013

Table 2.

Sample characteristics

n M SD Range %

Age 379 16.12 0.56 15 – 19 -
Gender (Female) 379 - - - 58%
Days driven per week 375 3.43 2.34 0 – 7 -
Perceived threat 372 14.11 2.08 4 – 16 -
Peer approval 371 11.16 3.58 5 – 20 -
Strongly oppose Oppose somewhat Support somewhat Support strongly
Support for: % % % %
 Law against reading or sending text messages/emails 373 6.9 12.9 22.4 56.2
 Law against hand-held cell phone for all ages 374 11.3 26.6 36.1 24.5
 Federal government regulation on NDIV technologies 374 22.2 27.2 31.9 16.9

Note. M = mean, SD = standard deviation, NDIV = non-driving-related in-vehicle.