Vollebergh, W.A.M.

problem cannabis use cannabi study adolescent behavior alcohol experience factor level parenting model child externalizing association group children parent substance score substance use adolescence smoking psychosi university netherland externalizing problems research relationship disorder population problem behavior moroccan alcohol use psychiatry dutch sample pregnancy effect internalizing skill dimension van os j discipline fi ndings frequency result health family table subdimension outcome analyses monitoring hallucinations immigrant acculturation risk factors distress cigarette number trail warmth grandiosity internalizing problems psychosis phenotype delusion youth externalizing behavior drd 4 measure offspring participant verhulst paranoia affection prevalence belief variable correlation