Fig. 3.
Number of times riding with a driver under the influence of cannabis (+/−1 SEM) over time by condition (personalized feedback + MI text messages, feedback only, information only).
Note: SEM = standard error of mean.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.