(Johnston et al., 2017) ^Youth’s report on perceived harm of various substancesFor each question, if heard of substanceAlcohol, cannabis, cigarettes, e-cigarettes, smokeless tobacco, inhalants, and prescription drugs, cocaine, heroin or methamphetamineAEQ-AB (Stein et al., 2007) *Youth’s expectancies about alcoholIf heard of alcoholAlcoholMEEQ-B (Torrealday et al., 2008)Youth’s expectancies about cannabisIf heard of cannabisCannabisASCQ-modified (Lewis-Esquerre et al., 2005)Youth’s expectancies about nicotineIf heard of nicotineNicotineSRE (Schuckit et al., 2008) *Youth’s acute subjective response to alcohol (first use, last 3 months, heaviest period of use)If heard of alcohol and used once in lifetime.AlcoholAcute Subjective Response to Marijuana scale (Agrawal et al., 2014)Youth’s acute subjective response to first cannabis exposureIf heard of cannabis and used once in lifetime.CannabisAcute Subjective Responses to Tobacco (Trinidad et al., 2018) +Youth’s acute subjective response to first nicotine exposureIf heard of nicotine and used once in lifetime.Nicotine (cigarettes, e-cigarettes, or smokeless tobacco) Consequences of Substance UseHSS (Slutske et al., 2003) *Cumulative symptoms of hangover from alcohol useIf heard of alcohol and if used on 2+ (9–11 year olds) or 3+ (12+ years) occasions in past 6 monthsAlcoholRAPI (White and Labouvie, 1989)Cumulative problem symptoms due to alcohol useIf heard of alcohol and if used on 2+ (9–11 year olds) or 3+
