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.
The figure summarizes the proportion of Group 3 participants who provided a correct response to the daily SMS question over the 6 months of the study. While there was considerable week-to-week variation, there was no trend to improvement over time.
