Jack EdwardsIn addition to editing this book, Jack Edwards has published two survey books cited in the Recommended Readings section of this chapter. He is currently an Assistant Director in the Office of Applied Research and Methods at the U.S. General Accountin Office, Washington, DC. His prior positions include Chief of the Personnel Survey Branch at the Defense Manpower Data Center and tenured Associate Professor at the Illinois Institute of Technology. (The opinions expressed in this article are those of the authors and do not necessarily reflect the views of the U.S. General Accounting Office.) Read More Read Less