“…Existing studies of ASB that have included African American subgroups have largely been cross-sectional (e.g., Bernat, Oakes, Pettingell, & Resnick, 2012;Connell, Cook, Aklin, Vanderploegg, & Brex, 2011;Cook, Pflieger, Connell, & Connell, 2015) and have yielded inconsistent findings in cases in which longitudinal data were examined. For instance, Mata and van Dulmen (2012) analyzed three waves of data from the National Longitudinal Study of Adolescent to Adult Health (Add Health), which consisted of 59% Caucasian, 14% African American, 7% Asian, 6% Hispanic, and 14% "other" youths followed into early adulthood (N = 5,579). They found evidence for four trajectories of aggressive ASB from adolescence to early adulthood: an abstainers group, which had consistently low levels of ASB (60.0%); an AL group, which had high levels of ASB during mid-adolescence, but decreased into early adulthood (20.3%); an adult-onset group, which had low ASB during adolescence but increased ASB at early adulthood (13.0%); and a chronic group, which had the highest levels of ASB across development, but slightly declined in ASB over time (6.7%).…”