Problem behavior displayed by these individuals is often difficult to assess and treat and potentially can lead to number of poor outcomes (Cunningham & O'Neill, 2007; Ervin et al., 2001; Solnick & Ardoin, 2010). As many as 50% of children with EBD drop out of school, with only 42% successfully graduating from high school (Kern & Dunlap, 1999). Contact with the criminal justice system after leaving school is substantially higher than typical and employment is substantially below the norm (Yell et al., 2009). These students are also more likely to be placed in restricted settings and experience suspension and expulsion at much higher rates than students who have other disabilities or students in general education (Simpson, 2004; Skiba, Peterson, & Williams, 1997). Outcome measures of those identified with EBD are grim (Simpson, 2004; Skiba et al., 1997). There is a need for effective, efficient assessment procedures that lead to the rapid development of interventions tailored to the underlying function of the problem behaviors, increase alternative behaviors, and maintain children in the least restrictive setting. Function behavior assessment has been shown to be effective in this process. Functional behavior assessments (FBAs) are methods to identify the function of problem behavior and to inform an intervention based upon the identified or hypothesized reinforcer of the target behavior. While FBA is an umbrella term referring to the range of methods available to assist in determining function (e.g., indirect, descriptive, functional analysis [FA]), an FA involves systematically altering some aspect of the environment while observing the target behavior (Hanley, 2012). Children identified with EBD present with certain characteristics that have made conducting FA challenging in public school settings (Anderson & St. Peter, 2013; Payne, Scott, & Conroy, 2007). Typically, children who are identified with EBD command extensive verbal repertoires and engage in a range of problem behavior including aggression, property destruction, elopement, and various forms of self-injury. Other topographies of problem behavior include selective eating, social isolation, social withdrawal, verbal threats, and noncompliance (Kern & Dunlap, 1999; Yell et al., 2009). Idiosyncratic variables that may be important to the display and maintenance of problem behavior may be absent or difficult to replicate and participants identified with EBD may identify the setting and procedures as contrived (