Ronald G. Corwin is professor emeritus of sociology at The Ohio State University. He also served as director of basic research in the U.S. Department of Education, vice president of the American Educational Research Association (AERA), and various elected positions in the American Sociological Research Association. Author or co-author of 15 books and two dozen contributed chapters, he also edited a series of books on educational research. His work has appeared in the American Sociological Review and other sociological journals, including Sociology of Education for which he served as an associate editor. E. Joseph Schneider serves as distinguished senior fellow, National Policy Board for Educational Administration, Washington, D.C., and was the deputy executive director of the American Association of School Administrators (AASA). He has also served as president of Leadership Development Resources, executive secretary of the National Policy Board for Educational Administration, and the CEO of a Washington-based education association.