“…Today, aggressive behaviour appears to be dramatically increasing in schools (Myles & Simpson, 1998) and is consistently ranked as one of the biggest problems facing public schools in the United States (Rose & Gallup, 2003). As such, teachers are required to educate a burgeoning number of these students, who are a constant challenge to manage and instruct (Gable, Quinn, Rutherford, & Howell, 1998). Unfortunately, however, many schools lack the capacity to meet the needs of these students effectively and efficiently (Sugai & Horner, 1999;Taylor-Greene et al, 1997).…”