Validation of the marijuana effect expectancy questionnaire-brief
Date of Original Version
The purpose of this study was to evaluate a brief version of the Marijuana Effect Expectancy Questionnaire (MEEQ; Schafer Brown, 1991). The original MEEQ was reduced to 6 items (MEEQ-B). Principal component analysis (PCA) was performed and two factors were identified (positive effects and negative effects) accounting for 52.3% of the variance. Internal consistencies (0.42 to 0.60) were slightly lower than those of the original MEEQ. The negative effect expectancy scale correlated with criterion variables that assess marijuana use (p.05). This measure is a helpful tool for clinicians to use when assessing youth expectancies. Replication across different samples of adjudicated youth is recommended.
Journal of Child and Adolescent Substance Abuse
Torrealday, O., L. A. Stein, N. Barnett, C. Golembeske, R. Lebeau, S. M. Colby, and P. M. Monti. "Validation of the marijuana effect expectancy questionnaire-brief." Journal of Child and Adolescent Substance Abuse 17, 4 (2008): 1-17. doi:10.1080/15470650802231861.