“…This suggests that the behavior change found in this study was a result external teacher management rather than student motivated change. Being a relatively brief study there may have been insufficient time available to develop prosocial behavior that require student-motivated change regarding personal values and involvement in forms of social skills training (Bandy & Moore, 2011;Kidron & Fleishman, 2006;Lochman, Coie, Underwood, & Robert, 1993). The results found in this study are similar to other studies which use formalized training programs to increase the teacher's knowledge and ability to manage classes in an effective manner (Piwowar, Thiel, & Ophardt, 2013;Korpershoek, Harms, de Boer, van Kuijk, & Doolaard, 2016).…”