The clinical and impulsivity data of the sample were collected with three instruments: (1) SSAGA – The Semi Structured Assessment for the Genetics of Alcoholism (Bucholz et al., 1994) evaluated clinical diagnoses and symptoms; (2) FHAM The Family History Assessment Module (Rice et al., 1995) assessed major psychiatric disorders among relatives of the participants; and (3) BIS – The Barratt Impulsiveness Scale (BIS) (Patton et al., 1995) provided ratings of impulsivity in three categories viz., attentional, motor, and non-planning, yielding individual as well as total scores.
