Eleanor Emmons Maccoby (born in Tacoma, Washington, May 15, 1917 ) is a psychologist best known for her contributions to developmental psychology and the psychology of sex differences. She worked with B.F. Skinner and obtained her Ph.D. from the University of Michigan. She has also worked as a professor at Stanford University. She was elected a Fellow of the American Academy of Arts and Sciences in 1974 and a member of the National Academy of Sciences in 1993.
In 1966, along with Robert Oetzel, she published her first book on sex-based differences, entitled The Development of Sex Differences. However, her most influential book was published in 1974, and was entitled The Psychology of Sex Differences, which Maccoby co-authored with Carol Jacklin. This book, which reviewed over 1,600 different studies of socialisation's effects on sex differences, stressed biological, rather than cultural, influences on sex-based differences.
The Maccoby Award
The Maccoby Award, named after Eleanor Maccoby, is delivered to the author of a book in psychology making contributions to an area of psychology represented by Division 7 of the American Psychological Association, that of developmental psychology. 
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