The Barratt Impulsiveness Scale (Patton, Stanford, & Barratt, 1995) asked participants how well a series of 30 statements related to attentional, motor, and nonplanning impulsiveness described their behavior on a 4-point scale ranging from 1 (rarely/never) to 4 (usually). The adolescents completed a modified version so that the questions were more appropriate to adolescents. A sum score was used.
