Only one group of teenagers used marijuana more often after retail sales were legalized in Washington than they did before – high school seniors who work 11 or more hours per week, according to new research led by a WSU College of Nursing professor.
Marijuana use went down significantly among 8th and 10th graders after legalization, and among 12th graders who didn’t work. It stayed nearly even for high school seniors who work less than 11 hours per week.
The research on marijuana use and employment, led by WSU College of Nursing Assistant Professor Janessa Graves, appears in the Journal of Adolescent Health.
Washington was one of the first states to approve legalization of marijuana for retail sale, with recreational cannabis stores opening in mid‑2014.
The authors were interested in knowing whether legalization in Washington made a difference in marijuana use among 8th, 10th, and 12th graders who work