Richard S MarkenDr Richard S. Marken is a research psychologist, human factors engineer and statistical consultant who has worked in both academia and commerce including at Honeywell, Inc., RAND Corporation and a 15-year stint as an Engineering Specialist at The Aerspace 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 is the author of four books and over 50 papers on control system theory and psychology. Read More Read Less