---
title: "Outgroup Homogeneity Bias — AP Psychology Definition"
description: "Outgroup homogeneity bias is the tendency to see members of other groups as all alike. Learn how it fuels stereotyping and prejudice for AP Psych Topic 9.5."
canonical: "https://fiveable.me/ap-psych-revised/key-terms/outgroup-homogeneity-bias"
type: "key-term"
subject: "AP Psychology"
---

# Outgroup Homogeneity Bias — AP Psychology Definition

## Definition

Outgroup homogeneity bias is the perception that individuals in an outgroup are more similar (homogeneous) than they really are, as compared to members of one’s ingroup.

## Related Study Guides

- [9.5 Bias, Prejudice, and Discrimination](/ap-psych-revised/unit-9/bias-prejudice-discrimination/study-guide/ACMUMy3rqR96vfTFad68)

## Review

### Related Terms

- [Confirmation Bias](/ap-psych-revised/key-terms/confirmation-bias): The tendency to interpret new evidence as confirmation of one's existing beliefs or theories.
- [Stereotyping](/ap-psych-revised/key-terms/stereotyping): As mentioned earlier, this is a fixed, over generalized belief about a particular group or class of people.
- [Cognitive Bias](/ap-psych-revised/key-terms/cognitive-bias): A systematic error in thinking that affects the decisions and judgments that people make.