The graphic shows the relationship between two trends identified in the annual Monitoring the Future Survey of 12th-graders. The annual prevalence of marijuana abuse by high school seniors falls when the perceived harmfulness of marijuana use rises and vice versa.This is Archived content. This content is available for historical purposes only. It may not reflect the current state of science or language from the National Institute on Drug Abuse (NIDA). For current information, please visit nida.nih.gov.
The graphic shows the relationship between two trends identified in the annual Monitoring the Future Survey of 12th-graders. The annual prevalence of marijuana abuse by high school seniors falls when the perceived harmfulness of marijuana use rises and vice versa.