Measuring Youth Cannabis Use in WA
The current state of data collection methods measuring use of cannabis by youth. (WSIPP, 2019)

Marijuana Use: Impact in WA
Data on the sale of retail marijuana, marijuana-related arrests and treatment admissions among adults and adolescents, and perceptions of and use of marijuana by youth in Washington. (ADAI, 2017)

Marijuana Use Surveys 
Matrix describing the major surveys for both youth and adults that provide state-level estimates. (ADAI, 2016)

Marijuana Use by Teens in WA
Data from the 2018 Healthy Youth Survey about teen use of marijuana (rates of use, where they obtain it, perceived risk, etc.). (HYS, 2018)

WA Young Adult Health Survey: Marijuana 
Report on the results of an internet-based survey of young adult recreational marijuana use  conducted in 2014. (CSHRB, DSHS, 2015)

WA Young Adult Health Survey: Perceived & Reported Use
Highlights of the alcohol- and marijuana-related findings from the 2015 Washington State Young Adult Health Survey (YAHS). (CSHRB, DSHS, 2016)

WA Young Adult Health Survey: Change in MJ Use Over Time 
Information from the Young Adult Health Survey, 2014-2016. (CSHRB, DSHS, 2018)

WA Young Adult Health Survey: Simultaneous Alcohol & Marijuana Use
Information from the Young Adult Health Survey on “cross fading” simultaneous use of alcohol and marijuana, 2015 and 2016. (CSHRB, DSHS, 2018)