The primary audience for this volume will be professionals in special education, curriculum, disability studies, research design, and policy studies. This content is a response to "Challenging Orthodoxy in Special Education: Dissenting Voices" edited by Deborah Gallagher. All graduate students and graduate faculty should own this book.This text intervenes in the debate between postmodern theory and the Enlightenment thinking it challenges currently raging across academic disciplines. It responds directly to the call for a postmodern approach to special education in the Gallagher book with an impassioned defense of the precepts of science against the threats of relativism. The book marshals a series of essays to argue that the liberator approach to special education is a clear danger to the children it is intended to serve. It refutes the call for a total rejection of the scientific methods and the more subtle ways postmodern thinking undermines science by preferring moral imperatives to objective facts.The editors of this new book employ the well-designed studies they defend to prove instances of specific harm from the faulty teaching methods postmodernists promote.