Edward Kellogg Strong, Jr., born in 1884 in Syracuse, New York, was the first author of the Strong Interest Inventory (Strong). At the age of 40, Strong took a position in the School of Business at Stanford University where he began his research in interest measurement. He remained at Stanford until his retirement in 1949.
Edward Deci and Richard Ryan are professors in the Department of Clinical and Social Sciences in Psychology at the University of Rochester. Their extremely productive 30-year collaboration has led to the development and continuing evolution of self-determination theory (SDT). Deci received his Ph.D. from Carnegie Mellon University in 1970, and Ryan received his Ph.D. from