The 1997 reauthorization of the Individuals with Disabilities Education Act (IDEA) suggests that the general education setting is the most appropriate placement for all students with disabilities based on its mandate for the least restrictive environment. Because many children with disabilities have historically been educated in self-contained special education classrooms with limited opportunities for inclusion with their more typical peers, some general education teachers are unsure of how inclusion of children with disabilities will impact their classroom. Given the emphasis on effective teaching and management of inappropriate behavior in inclusive settings where the focus is often on academic rather than functional behavioral skills, a need exists for intervention options that reduce disruptive classroom behaviors. The purpose of this study was to examine the effects of an interdependent group-oriented contingency, the Good Behavior Game on the out-of-seat, talking-out, and disruptive behaviors of students in a self-contained special education setting during reading and mathematics. The intervention was extended to a general education art inclusion class to determine if the effects would remain consistent under varying conditions. An elementary school in northeastern Ohio was selected for the cite of the study. Twelve students participated with 6 as primary participants due to their high levels of disruptive classroom behaviors, fights, office referrals, and school suspensions. A multiple-baseline design across academic subjects was used to assess the overall effects of the intervention. Results indicated reduced frequencies of target behaviors that remained consistent during the intervention phases of the study. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]