John W. Creswell, PhD, has been a professor of educational psychology at the University of Nebraska-Lincoln since 1978. In addition to teaching at the university, he has authored numerous articles on mixed methods research, qualitative methodology, and general research design and 12 books, many of which focus on types of research designs, comparisons of different qualitative methodologies, and the nature and use of mixed methods research. His books are translated into many languages and used around the world. For the last five years, Dr. Creswell served as a co-director at the Office of Qualitative and Mixed Methods Research at the University of Nebraska, which provided support for scholars incorporating qualitative and mixed methods research into projects for extramural funding. He served as the founding co-editor of the Sage Journal of Mixed Methods Research, and as an adjunct professor of family medicine at the University of Michigan where he assisted investigators in the health sciences and education with research methodology for National Institutes of Health (NIH) and National Science Foundation projects. He also served extensively as a consultant in the health services research area for the U.S. Department of Veterans Affairs. Dr. Creswell was a Senior Fulbright Scholar to South Africa and in 2008 lectured to faculty at five universities on education and the health sciences. In 2012 he served as a Senior Fulbright Scholar to Thailand. Recently he served as a co-leader of a national working group developing guidelines for mixed methods research for NIH. He lives with his wife, Karen, in Lincoln, Nebraska.