Age-varying time trends in cannabis- and alcohol-related risk perceptions 2002–2019

Alcohol- and cannabis-related risk perceptions are strong predictors of use behavior. Studies suggest that attitudes toward cannabis are becoming increasingly permissive, however studies have yet to comprehensively a) compare time trends in cannabis-related attitudes to those of other commonly used substances, such as alcohol, and b) test whether trends significantly differ by age.Public access data from the National Study on Drug Use and Health...