Analyses were performed using IBM SPSS Statistics v20 (Armonk, NY: IBM Corp.) and Rv3.121. One outlier (>3x the interquartile range away from the 25th/75th percentile) for right amygdala and right hippocampal volume was Winsorized to the next most extreme value. Independent samples t-tests and χ2 tests were used to test for differences in the covariates between cannabis-exposed and unexposed individuals.
