Research on gateway drugs indicates that many American youths have tried marijuana; Sadly, most of these adolescent users progress to crack or heroin abuse.

Question

Quizplus · Accepted Answer

Research does not support the claim that most marijuana users progress to using harder substances like crack or heroin. While marijuana is often labeled a "gateway drug," the majority of people who use marijuana do not go on to use harder substances.

Research on Gateway Drugs Indicates That Many American Youths Have