Study: Cannabis Use Not Predictive of Lower IQ, Poorer Educational Performance

Study: Cannabis Use Not Predictive of Lower IQ, Poorer Educational Performance

Marijuana use by adolescents is not associated with lower IQ or poorer educational performance once adjustments are made for potential confounders, specifically cigarette smoking, according to longitudinal data published online ahead of print in the Journal of Psychopharmacology.

British investigators assessed the relationship between cumulative cannabis use and IQ at the age of 15 and educational performance at the age of 16 in a cohort of 2,235 adolescents.

After researchers adjusted for potentially confounding variables, such as childhood…

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