American psychologistDied when: 89 years 59 days (1069 months)
Star Sign: Virgo
Arthur Robert Jensen (August 24, 1923 – October 22, 2012) was an American psychologist and writer.He was a professor of educational psychology at the University of California, Berkeley.
Jensen was known for his work in psychometrics and differential psychology, the study of how and why individuals differ behaviorally from one another.
He was a major proponent of the hereditarian position in the nature and nurture debate, the position that genetics play a significant role in behavioral traits, such as intelligence and personality.
He was the author of over 400 scientific papers published in refereed journals and has an h-index of 86.He sat on the editorial boards of the scientific journals Intelligence and Personality and Individual Differences.
Jensen was influential enough that Jensenism has become part of the English lexicon, referring to what researcher Linda Gottfredson described as "his conclusion that individual differences in intelligence are highly heritable and group differences may be too." He remains controversial, largely for his conclusions regarding the causes of race-based differences in IQ, with a 2019 study finding him to be the most controversial intelligence researcher among the 55 persons covered.