“…Previous studies of CW-FIT in elementary grades have consistently shown improved prosocial behavior and reduced disruptive behavior during instruction as well as increased rates of teacher praise and decreased reprimands across age groups and subject areas (Caldarella, Williams, Hansen, & Wills, 2015;Caldarella, Williams, Jolstead, & Wills, 2017;Kamps et al, 2015Kamps et al, , 2011Weeden, Wills, Kottwitz, & Kamps, 2016;Wills, Iwaszuk, Kamps, & Shumate, 2014;Wills et al, 2010). The intervention has also been found to yield high levels of treatment integrity and to be perceived by teachers and students as being socially valid .…”