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 Eysenck scale also were correlated with age at first drink as well as past year frequency, even at this early stage of alcohol experimentation (unpublished data). Von Diemen et al. (2008) found that adolescents (n = 418) with AUDs as well as other substance use disorders (SUDs) demonstrated both an earlier age of first drink as well as higher scores on the BIS-11. Taken together, there is considerable accumulated evidence that various indicators of impulsiveness, including both self-report measures and behavioral indices, are predictive of early onset of drinking.
