In 1920, when she graduated from Vassar College with a degree in psychology, Rosalie Rayner took a coveted position at the Johns Hopkins research lab to assist charismatic John B. Watson, the man who pioneered behaviorist psychology. Together, Watson and Rayner conducted experiments on hundreds of babies to prove behaviorist principles of nurture over nature. […]

In 1920, when she graduated from Vassar College with a degree in psychology, Rosalie Rayner took a coveted position at the Johns Hopkins research lab to assist charismatic John B. Watson, the man who pioneered behaviorist psychology. Together, Watson and Rayner conducted experiments on hundreds of babies to prove behaviorist principles of nurture over nature. […]