PROJECT RESIN: This study is examining the reliability, validity, and acceptability of a novel visual scale for estimating daily methamphetamine use among people who use methamphetamine.
Age 20-40 inclusive
English speaking
Self-reports using methamphetamine at least once in the past 7 days (attempts will be made to enroll participants with varied frequencies of methamphetamine use)
At least 1cm of untreated occipital scalp hair
Participant, in the opinion of the investigators, would be unable to complete study procedures
Phillip Coffin, MD, MIA
Lead sponsor
San Francisco Department of Public Health
Sponsor institution