= 12.99, SD = 1.11 at baseline assessment; Mage = 15.11, SD = 1.23 at Time 2; 49.8% male) ancestry participants. No differences were observed between this analytic sample and the whole adolescent sample at baseline in externalizing behaviors. However, this analytic sample was younger at baseline (t = −7.23, p < .01) and had lower peer substance use (t = −3.35, p < .01) at baseline.
