Ambivalent sexism is a theoretical framework which posits that sexism has two sub-components: "hostile sexism" and "benevolent sexism". Hostile sexism reflects overtly negative evaluations and stereotypes about a gender (e.g., the ideas that women are incompetent and inferior to men). Benevolent sexism represents evaluations of gender that may appear subjectively positive (subjective to the person who is evaluating), but are actually damaging to people and gender equality more broadly (e.g., the ideas that women need to be protected by men). For the most part, psychologists have studied hostile forms of sexism. However, theorists using the theoretical framework of ambivalent sexism have found extensive empirical evidence for both varieties. The theory has largely been developed by social psychologists Peter Glick and Susan Fiske.
Sexism, like other forms of prejudice, is a type of bias about a group of people. Sexism is founded in conceptualizations of one gender as being superior or having higher status than another gender in a particular domain, which can lead to discrimination. Research has indicated that stereotypes about socially appropriate gender roles for women and men are a driving factor in the endorsement of sexism.Patriarchy, defined as men's power and "structural control over political, legal, economic, and religious institutions", is a feature of sexism and is related to hostile attitudes toward women. Anthropological research suggests that patriarchy is pervasive among the majority of human societies, such that women have been systematically discriminated against, oppressed, and marginalized by men throughout history. Sexism maintains patriarchal social structures and reinforces prescribed gender roles.
Typically, sexism is thought of as hostility toward women, perpetrated by men. However, both women and men can (and often do) endorse sexist beliefs about each other and themselves. In other words, men can express sexist attitudes about women or men, and women can express sexist attitudes about men or women. While sexism has historically disadvantaged women, there are negative consequences of sexism for both men and women. Rigid gender roles can be damaging to women and men alike, restricting opportunities and promoting gender-based prejudice. For the purposes of this article, sexism toward women will be the focus, as it is most relevant to the definition and study of ambivalent sexism.