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DebiasDaily
0day streak
Well-established

Social

In-group Bias

Interpersonal psychological effect

Definition

The tendency to favor members of your own group over outsiders, giving them preferential treatment, trust, and positive evaluations.

Why it happens

Humans evolved in tribal groups where loyalty to your own group was essential for survival. This instinct persists, making us default to favoring 'our people.'

Real-life examples

  • Hiring someone from your own university over an equally qualified candidate.
  • Defending a friend's bad behavior while condemning the same behavior in a stranger.
  • Rooting for your national team regardless of their skill level.

How to counter it

  1. Apply the same standards to in-group and out-group members.
  2. Ask: "Would I evaluate this the same way if the person were from a different group?"
  3. Include diverse perspectives in your decision-making process.
  4. Actively build relationships with people outside your usual circles.

Quick tips

  • Be aware of your group affiliations and how they might influence your judgment.
  • Apply the same standards to in-group and out-group members.
  • Actively seek diverse perspectives in decision-making.
  • Ask: 'Would I feel the same way if this person were not part of my group?'

Sources and further reading

Related biases