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.
Group differences in longest duration of continuous alcohol abstinence.
Note: The Figure represents the mean number of continuous alcohol-negative ethyl glucuronide alcohol tests attained by the contingency management and non-contingent control groups during the intervention period, F (3)=5.55, df=1, 76, p<0.05.
