The tendency to perceive members of an outside group as being more alike than members of one’s own group is a cognitive bias prevalent in social perception. Individuals often overestimate the similarity of those not belonging to their in-group while simultaneously recognizing the diversity within their own group. For instance, a person might believe that all members of a rival sports team act and think alike, while acknowledging the wide range of personalities and behaviors among the fans of their own team.
This bias impacts interpersonal relationships, intergroup dynamics, and even societal structures. Recognizing the tendency to view others as a monolithic entity can lead to improved communication, reduced prejudice, and more informed decision-making. It has been explored across various disciplines including social psychology, political science, and organizational behavior, and understanding its mechanisms helps us develop strategies to mitigate its negative effects.
