This modulefocuses on biases against social groups,which social psychologists sort intoemotional prejudices, mental stereotypes,and behavioral discrimination. Thesethree aspects of bias are related, but theyeach can occur separately from the others(Dovidio & Gaertner, 2010; Fiske, 1998). Forexample, sometimes people have anegative, emotional reaction to a socialgroup (prejudice) without knowing even themost superficial reasons to dislike them(stereotypes).