Paul H. Mussen

Paul Henry Mussen (1922 to 2000) was an American developmental psychologist who described stages of child psychological development. Born in Paterson, New Jersey, he studied at Stanford University, served in the United States Navy during the Second World War and took his doctorate at Yale University in 1949, then taught at the University of Wisconsin and Ohio State University before joining the University of California, Berkeley, where he stayed for the rest of his career. His textbook Child Development and Personality, first published in 1956, sold more than a million copies and was translated into ten languages. He was one of the first psychologists to link the biological, social and psychological development of children, and he co-edited the Annual Review of Psychology with Mark Rosenzweig from 1969 to 1974.