Postmodernism is a philosophical description that encompasses philosophy, the arts, a period of history, and many other aspects of today's existence. This dissertation examines the extent to which Indiana public school superintendents use postmodern philosophy as opposed to modern philosophy to inform their practice. This was accomplished by examining eight leadership concepts through the application of questions with decisions related to either modernism or postmodernism. The study described by this dissertation used a quantitative research method assembling data and determining the correlation of operant philosophy by a superintendent with their tenure. [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://www.proquest.com/en-US/products/dissertations/individuals.shtml.]