The Barratt Impulsiveness Scale (BIS-11; (Patton et al., 1995)) was used to assess the personality/behavioral construct of impulsiveness. It is the most widely cited instrument for the assessment of impulsiveness and has been used to advance our understanding of this construct and its relationship to other clinical phenomena for 50 years (see for review Stanford et al., 2009). Nonplanning, motor, attentional, and total impulsiveness subscales were derived by scoring and used for the statistical analysis.
