When we judge someone on the basis of our perception of a group to which he or she belongs we’re using the shortcut called stereotyping.
For instance, “Married persons are more stable employees than single persons” is an example of stereotyping. To the degree that a stereotype is based on fact, it may produce accurate judgments. However, many stereotypes aren’t factual and distort out judgment.
Judging a person on the basis of one’s perception of a group to which he or she belongs.