What is Ingroup Bias?

Ingroup Bias is a mental model used for better thinking and decision-making.

How do you apply Ingroup Bias?

To apply Ingroup Bias, identify situations where this framework is relevant, then use it as a lens to evaluate your options and decisions. The model is most useful when combined with other complementary mental models.

What category does Ingroup Bias fall under?

Ingroup Bias falls under the Psychology & Behavior category of mental models. Other models in this category can be found on the Psychology & Behavior hub page.

Why is Ingroup Bias important?

Ingroup Bias is important because it provides a structured way to think about problems that would otherwise be approached with intuition alone. Understanding this model helps you avoid common reasoning errors and make better decisions.

Psychology & Behavior

Ingroup Bias

Model #0938Category: Psychology & BehaviorDepth to apply:

4 min read

1. Core Idea
2. How to See It
3. How to Use It
4. Founders & Leaders
5. Connected Models
6. One Key Quote
7. Summary & Further Reading

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How to cite

Faster Than Normal. “Ingroup Bias Mental Model.” fasterthannormal.co/mental-models/ingroup-bias. Accessed 2026.

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Ingroup Bias

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