“…Decades of research support the use of functional behavior assessment as an intervention planning tool for students exhibiting problem behavior (Carr, Horner, et al, 1999;Lane, Umbreit, & Beebe-Frankenberger, 1999;McIntosh, Brown, & Borgmeier, in press). Although some researchers in the past have criticized its utility (Gresham, 2003;Sasso, Conroy, Stichter, & Fox, 2001), recent research has shown that interventions that do not address the function of problem behavior are unlikely to be successful in reducing moderate to severe problem behavior (Carter & Horner, 2007, in press;Filter & Horner, in press;Ingram, Lewis-Palmer, & Sugai, 2005;March & Horner, 2002;Newcomer & Lewis, 2004). Therefore, a key consideration when assessing an RTI model of behavior support is whether function of problem behavior moderates the response to tier two interventions.…”