Richard S Marken

Richard S. Marken is a leading authority on the Perceptual Control Theory (PCT) model of behavior. Now retired from a career as a psychology professor, human factors engineer, and health policy researcher, he still actively consults and carries out a program of research testing PCT.

Richard S. Marken is a leading authority on the Perceptual Control Theory (PCT) model of behavior. Now retired from a career as a psychology professor, human factors engineer, and health policy researcher, he still actively consults and carries out a program of research testing PCT. See less