This study was based on the assumption there would be no significant differences between the perceptions teachers and principals have of the principal's role in a differentiated staff. After extensive review of the literature, four major role tasks were identified as necessary for the principal to perform, if the concept was to be successfully implemented. A key component to success is the principal's ability and willingness to allow teachers and other personnel to become involved in the decision-making process. The principal should encourage the participation of staff and students in the development of school programs and policies, stress shared decision-making and emphasize administrative interaction with staff and students. / Ph. D.