“…Although evidence on the benefits of martial arts study is ample in the literature, research examining martial arts as interventions for violence, aggression, and bullying is sparse and inconsistent. Some evidence suggests no significant association between martial arts participation and juvenile anger and aggression (Gubbels, van der Stouwe, Spruit, & Stams, 2016), while other research indicates that martial arts are associated with higher levels of anger and violence (Lotfian, Ziaee, Amini, & Mansournia, 2011;Mutz, 2012;Ziaee, Lotfian, Amini, Mansournia, & Memari, 2012). Still other research asserts that martial arts are associated with decreased externalizing behaviors (Harwood, Lavidor, & Rassovsky, 2017;Twemlow et al, 2008;Vertonghen & Theeboom, 2010).…”