Richard S. Marken, PhD, is a research psychologist, human factors engineer, and statistical consultant. Dr. Marken was Associate Professor and Chairman of the Department of Psychology at Augsburg College in Minneapolis, Minnesota. He also consulted at Honeywell, Inc. on statistical, methodological, and human factors issues related to workspace design and human-computer interface technology.

Dr. Marken had a 15-year career as an Engineering Specialist at The Aerospace Corporation in El Segundo, CA, where he developed methods for rapidly prototyping and evaluating designs for the human-computer interface component of satellite ground control systems. He then spent five years as a Senior Behavioral Scientist at the RAND Corporation in Santa Monica, CA, where he led research projects on healthcare quality issues and pilot training system design.

Dr. Marken is retired but remains active, consulting on statistical issues in health policy research and carrying on his own program of research testing the Perceptual Control Theory model of purposeful behavior. He is the author of over 50 papers on control theory psychology and six books, including "Controlling People: The Paradoxical Nature of Being Human" (with counseling psychologist Timothy A. Carey).