The problem addressed in this study was whether middle level schools have adopted currently held research findings with respect to organizational structure and decision making processes promoted by the work of the Carnegie Foundation and various state agencies. Purposes included determining the perceptions of principals in schools utilizing interdisciplinary teams of teachers regarding the roles of principals and teachers in decision making processes, differences in campus performance on the Texas Assessment of Academic Skills and specific demographic variables in comparison to perceptions of principals in schools not utilizing interdisciplinary teams on these same questions.