Leonard Berkowitz was born on August 11, 1926, and died on January 3, 2016.
He was an American social psychologist.
He was best known for his research on altruism and human aggression.
Leonard developed the Cognitive Neoassociation Model of aggressive behavior, which was created to help explain instances of aggression for which the Frustration-Aggression Hypothesis could not account.
He gained his Ph.D. in Psychology from the University of Michigan in 1951.
Leonard worked on the faculty at the University of Wisconsin–Madison from 1959 to 1980.
At that time, Berkowitz also held visiting appointments at Cambridge, Cornell, Oxford, and Stanford Universities.
He was a Vilas Research Professor Emeritus in the Department of Psychology at the University of Wisconsin–Madison, before his death.
During his career, he has authored of over 170 articles, books, and textbooks on psychology.
After a Review of General Psychology survey, published in 2002, ranked Berkowitz as the 76th most cited psychologist of the 20th century.
Leonard Berkowitz passed away at 89 yrs old in Oakwood Village in Madison, Wisconsin after a brief undisclosed illness.