Douglas N. Jackson
Douglas Northrop Jackson II (August 14, 1929 – August 22, 2004) was a Canadian psychology professor best known for his work in human assessment and psychological testing. == Life and career == Born in Merrick, New York, Jackson graduated from Cornell University in 1951 with a B.S. in industrial and labor relations and earned his Ph.D. from Purdue University in 1955 in clinical psychology.