for 83% of the covariance. E factors explained 17% of the covariance in Whites and 100% of the covariance in Blacks.d)A-RA and timing of first alcohol use in Whites: this correlation was primarily attributable to A factors (rA = .75) with little evidence for specific genetic influences on timing.e)A-RA and DSM5-AUD in Whites and Blacks: variance components in this model could be completely equated across ethnicity, and the relationship was attributable to A factors that were negatively correlated (rA = −.61).
