Robert Yerkes

Robert Yerkes was a prominent American psychologist, primatologist, and educator who made significant contributions to the fields of psychology, anthropology, and zoology. He is best known for his work on intelligence testing and his research on chimpanzees at the Yale University's Primate Research Center. Yerkes' work was influenced by notable figures such as Charles Darwin, Sigmund Freud, and John B. Watson. He was also associated with institutions like the American Psychological Association, National Academy of Sciences, and the American Academy of Arts and Sciences.

● Early Life and Education

Robert Yerkes was born in Breadysville, Pennsylvania, to a family of Quakers. He grew up in a rural area and developed an interest in natural history and zoology at an early age. Yerkes attended the Ursinus College in Collegeville, Pennsylvania, where he studied biology and psychology under the guidance of professors like William James and Hugo Münsterberg. He later moved to Harvard University to pursue his graduate studies in psychology and philosophy, where he was influenced by scholars like William McDougall and Josiah Royce.

● Career

Yerkes began his career as a professor of psychology at Harvard University, where he taught courses on comparative psychology and animal behavior. He later moved to Yale University to become the chairman of the Department of Psychology. During World War I, Yerkes served as the president of the American Psychological Association and played a key role in the development of intelligence testing for the United States Army. He worked closely with other notable psychologists like Edward Thorndike, Lewis Terman, and Henry Goddard to develop the Army Alpha and Army Beta tests.

● Research and Contributions

Yerkes' research focused on comparative psychology, animal behavior, and intelligence testing. He conducted extensive studies on chimpanzees and other primates at the Yale University's Primate Research Center, which he founded in 1924. Yerkes' work on intelligence testing led to the development of the Stanford-Binet Intelligence Scale, which was widely used in the United States and other countries. He also made significant contributions to the field of primatology, working with researchers like Jane Goodall, Dian Fossey, and Biruté Galdikas to study the behavior of great apes in their natural habitats.

● Personal Life

Yerkes was married to Ada Watterson Yerkes, and they had two children together. He was a member of the American Philosophical Society and the National Academy of Sciences, and he served as the president of the American Society of Naturalists. Yerkes was also associated with the New York Academy of Sciences, the American Academy of Arts and Sciences, and the British Psychological Society. He was awarded the Gold Medal of the American Psychological Association and the National Medal of Science for his contributions to psychology and primatology.

● Legacy

Yerkes' legacy extends beyond his contributions to psychology and primatology. He played a key role in the development of intelligence testing and the establishment of the Primate Research Center at Yale University. Yerkes' work influenced notable researchers like B.F. Skinner, Jean Piaget, and Konrad Lorenz, and his ideas continue to shape the fields of psychology, anthropology, and zoology. The Robert M. Yerkes National Primate Research Center at Emory University is named in his honor, and it continues to conduct research on primates and other animals. Yerkes' work is also recognized by institutions like the University of California, Berkeley, University of Chicago, and Columbia University, which have all made significant contributions to the fields of psychology and primatology. Category:American psychologists