The Marijuana Effect Expectancy Questionnaire- Brief (MEEQ-B (Torrealday et al., 2008)) is used to measure cannabis related expectancies in youth and is based on the original MEEQ (Schafer and Brown, 1991). Some wording modification was conducted (removing the sexual item) due to the young age of the ABCD cohort. This 6-item measure has demonstrated two overall factors (positive effects and negative effects) accounting for 52% of the variance, good internal consistency (0.42.60), and predictive validity for cannabis use in youth (Torrealday et al., 2008).
