Robert Yerkes
（重定向自Robert Mearns Yerkes）
Robert Mearns Yerkes (/ˈjɜːrkiːz/; May 26, 1876 – February 3, 1956) was an American psychologist, ethologist, and primatologist best known for his work in intelligence testing and in the field of comparative psychology.
Yerkes was a pioneer in the study both of human and primate intelligence and of the social behavior of gorillas and chimpanzees. Along with John D. Dodson, Yerkes developed the Yerkes-Dodson law relating arousal to performance.