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Psychology

What is In-group bias?

In-group bias is our tendency to favor people who belong to the same group as us — whether by team, nationality, or interest — over outsiders. It shapes loyalty and cooperation, but can also fuel prejudice and conflict between groups.

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Key things to understand

  • 1We favor members of our own group over outsiders.
  • 2Groups can form around almost anything.
  • 3It boosts in-group trust and cooperation.
  • 4It can also drive prejudice and division.

Frequently asked questions

What is in-group bias?
The tendency to favor and trust people in our own group over those outside it.
What causes in-group bias?
A deep social instinct to belong and cooperate, which makes us favor 'us' over 'them'.
How can in-group bias be reduced?
By building shared goals, contact, and common identities that bridge different groups.

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