According to an article in Medical News Today, marijuana use increased and the drug's perceived harmfulness decreased among eighth- and 10th-graders in Washington after marijuana was legalized for recreational use by adults.
But there was no change among 12th-graders or among students in the three grades in Colorado after legalization for adults there, according to a new study published online by JAMA Pediatrics.
Washington and Colorado became the first two states to legalize recreational use of marijuana for adults in 2012, followed by handful of other states since. The potential effect of legalizing marijuana for recreational use has been a topic of considerable debate.
According to research findings, no changes were seen in perceived harmfulness or marijuana use among Washington 12th-grades or students in the three grades in Colorado, for which researchers offer several explanations in their article.