Marijuana Legalization and Youth Marijuana, Alcohol, and Cigarette Use and Norms

7/9/20–This study tests whether nonmedical marijuana legalization predicts a higher likelihood of teen marijuana, alcohol, or cigarette use or lower perceived harm from marijuana use in a longitudinal sample of youth aged 10–20 years. Results indicated that it is important to consider recent broad declines in youth substance use when evaluating the impact of nonmedical marijuana legalization. Furthermore, states that legalize nonmedical marijuana for adults should increase resources for the prevention of underage marijuana and alcohol use. Read