Scott W. VanderStoep, associate professor in the Department of Psychology, Hope College, Holland, Michigan, is the former director of the Carl Frost Center for Social Science Research at Hope College. He is the coauthor of Learning to Learn: The Skill and Will of College Success and editor of Science and the Soul: Christian Faith and Psychological Research.

Deirdre D. Johnston, professor in the Department of Communications, Hope College, Holland, Michigan, and is the author of The Art and Science of Persuasion.