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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.

Born in Merrick, New York, Jackson graduated from Cornell University in 1951 with a BSc in Industrial and Labor Relations and from Purdue University in 1955 with a PhD in Clinical Psychology. Jackson taught at Pennsylvania State University (1956–62) and Stanford University (1962–64) before starting at University of Western Ontario in 1964, where he taught for over 32 years.

Jackson created numerous tests in his life, including the Multidimensional Aptitude Battery (MAB), Personality Research Form (PRF), Jackson Vocational Interest Survey (JVIS), and Employee Screening Questionnaire (ESQ).  These were distributed through two companies he founded, Research Psychologists Press and Sigma Assessment Systems.

He collaborated with Samuel Messick at the Educational Testing Service, examining construct validity. Jackson also published several analyses on sex and intelligence that found males had a small but nontrivial advantage in general intelligence factor and in reasoning.

Jackson served on the Executive Council of the International Test Commission and was a Fellow of the Royal Society of Canada (1989). He was president of the Society of Multivariate Experimental Research from 1975–1976 and received their Saul Sells Award for Lifetime Contributions in 1997. He was President of APA’s Division of Measurement, Evaluation, and Statistics from 1989–1990 and was awarded that division’s Samuel J. Messick Award for Distinguished Scientific Contributions in 2004.

In 1994 he was one of 52 signatories on "Mainstream Science on Intelligence," an editorial written by Linda Gottfredson and published in the Wall Street Journal, which declared the consensus of the signing scholars on issues related to the race and intelligence controversy that followed the publication of the book The Bell Curve.

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