1961 Albert Bandura develops social learning theory, which suggests that boys and girls behave differently because they are treated differently.
1970 Robert Helmreich and Elliot Aronson publish a study showing that men find competent men more likeable than incompetent ones.
1992 US psychologist Alice Eagly finds that women are evaluated more negatively when they display leadership in a traditionally masculine way.
2003 Simon Baron-Cohen suggests the female brain is predominantly hardwired for empathy, whereas the male brain is hardwired for understanding systems.
Until the women’s liberation movement took ...