The Implications of Cannabis Policy Changes in Washington on Adolescent Perception of Risk, Norms, Attitudes, and Substance Use.

Subst Abuse · 2018 · PMC6295677 · PMID 30573965

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difference was apparentno p-value reported

11 For example, Khatapoush and Hallfors 22 found lower rates of risk perceptions and higher rates of approval among adolescents and young adults in California after medical cannabis legalization as compared to states that had not legalized, but, this difference was apparent pre-policy change (ie risk perception was lower and approval was higher than other states even before legalization).

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