Which biological and self-report measures of cannabis use predict cannabis dependency and acute psychotic-like effects?

Abstract Background: Changes in cannabis regulation globally make it increasingly important to determine what predicts an individual’s risk of experiencing adverse drug effects. Relevant studies have used diverse self-report measures of cannabis use, and few include multiple biological measures. Here we aimed to determine which biological and self-report measures of cannabis use predict cannabis dependency and acute psychotic-like symptoms. Method: In a naturalistic study, 410 young cannabis users were assessed once when intoxicated with their own cannabis and once when