Figure 2A.

Genetic (Figure 2A) and unique environmental (Figure 2B) path estimates (95% confidence intervals) for the full model testing the relationship between hyperactivity/impulsivity (HYPER) and alcohol dependence (AD), after setting shared environmental factor loadings to 0 (except that loading onto conduct disorder [CD]), but before testing the significance of genetic and unique environmental covariances specific to each attention-deficit/hyperactivity (ADHD) factor and AD. Although path estimates differed slightly depending on the order of ADHD factors, these estimates are generally representative. The shared environmental path estimate loading onto CD was .33 (.33–.43) (not pictured). INATT = inattention; FORGET = forgetfulness.