Brent D. Slife is a clinical psychologist and, until his recent retirement, was Professor of Psychology at Brigham Young University, USA. He is the Editor-in-Chief of the Journal of Theoretical and Philosophical Psychology and received the Presidential Citation from the American Psychological Association for his contribution to psychology.

Stephen C. Yanchar is an Associate Professor in the Department of Instructional Psychology and Technology at Brigham Young University, USA. He is primarily interested in theoretical and philosophical issues in education and psychology, especially those pertaining to agency and learning, qualitative inquiry, and design practices.