Many studies have examined trait-based aspects of impulsivity as predictors of early use of alcohol and other drugs (Kirisci, Tarter, Reynolds, & Vanyukov, 2006; Clark, Cornelius, & Kirisci, 2005; Tarter, 2002; Lejuez et al., 2007). In an extensive series of longitudinal studies, Tarter and colleagues (1999) have reported that adolescents who exhibit behavioral dysregulation, as measured by both behavioral and self-report measures, are more likely to use drugs and alcohol. Dom, D’Haene, Hulstijn, & Sabbe (2006) found that early-onset problem drinkers scored higher than late-onset problem drinkers on the Barratt Impulsivity Scale (BIS), as well as measures of sensation seeking, and aggressiveness. McGue, Iacono, Legrand, Malone, & Elkins (2001) found that measures of behavioral disinhibition (including inattentiveness, hyperactivity, and impulsivity) at age 11 predicted drinking onset by age 14, and that age of first use of alcohol was associated with antisocial personality characteristics and “lack of constraint.” Lejuez et al. (2007) reported that the Eysenck Impulsiveness Questionnaire (EIQ; Eysenck et al., 1985) was correlated with a composite of risk-taking behaviors in 98 African American adolescents, aged 14–18. Scores on the
