W. Paul Vogt is Emeritus Professor of Research Methods and Evaluation at Illinois State University where he won both teaching and research awards. He specializes in methodological choice and program evaluation and is particularly interested in ways to integrate multiple methods. His other books include: "Tolerance & Education: Learning to Live with Diversity and Difference" (Sage Publications, 1998); "Quantitative Research Methods for Professionals" (Allyn & Bacon, 2007); "Education Programs for Improving Intergroup Relations" (coedited with Walter Stephan, Teachers College Press, 2004). He is...