Marijuana SmokingMarijuana AbuseSubstance-Related DisordersCannabisAlcohol-Related DisordersAlcoholismAlcohol DrinkingSocial ConformityDiagnosis, Dual (Psychiatry)Street DrugsDiagnostic and Statistical Manual of Mental DisordersMental DisordersPeer GroupAdolescent BehaviorBipolar DisorderDronabinolAnxiety DisordersMood DisordersLongitudinal StudiesMotivationComorbiditySocial EnvironmentUnited StatesPsychiatric Status Rating ScalesCannabinoidsStudentsSubstance Abuse DetectionRisk-TakingCocaine-Related DisordersJuvenile DelinquencyRisk FactorsSibling RelationsPrevalenceQuestionnairesSmokingSubstance Abuse Treatment CentersInterview, PsychologicalConduct DisorderHealth SurveysUniversitiesSocial FacilitationDepressive Disorder, MajorPhobic DisordersNational Longitudinal Study of Adolescent HealthImpulsive BehaviorBinge DrinkingTobacco Use DisorderAntisocial Personality DisorderCross-Sectional StudiesCrimeModels, PsychologicalPsychotropic DrugsSex FactorsAge FactorsAttention Deficit Disorder with HyperactivityRelaxationAdolescent PsychologyResidential TreatmentAlcohol-Induced DisordersHallucinogensSubstance Withdrawal SyndromeViolenceSelf ReportStudent DropoutsDepressive DisorderParent-Child RelationsStress Disorders, Post-TraumaticLogistic ModelsNew York CityAnxietyAffectOpioid-Related DisordersSocioeconomic FactorsFollow-Up StudiesFamily RelationsPersonality InventoryHispanic AmericansUrban PopulationAdaptation, PsychologicalFriendsDelawarePersonality DevelopmentTime FactorsAfrican AmericansRhode IslandSocial Control, InformalPsychotherapy, BriefCognitive TherapyPsychotic DisordersAge of OnsetImpulse Control DisordersAggressionDrug and Narcotic ControlPsychometricsCognition DisordersNegotiatingAlcohol DeterrentsDemographyObsessive-Compulsive DisorderSeverity of Illness Index