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Memory & Perception

Illusory Correlation

Social-cognitive bias

Definition

The tendency to perceive a relationship between two unrelated things, often because they are unusual or stand out together.

Why it happens

Our brains are pattern-seeking machines. When two distinctive events co-occur, we remember them more vividly and assume a causal connection even when none exists.

Real-life examples

  • Believing that a full moon causes strange behavior.
  • Associating a specific outfit with good luck after wearing it during a win.
  • Thinking a minority group commits more crime because those cases are more memorable.

How to counter it

  1. Track actual occurrences in a simple spreadsheet or tally.
  2. Ask: "Am I noticing this because it's real or because it's memorable?"
  3. Look for statistical evidence before assuming two things are related.
  4. Be especially skeptical of correlations involving rare or dramatic events.

Quick tips

  • Look for statistical evidence before assuming two things are related.
  • Ask: 'Am I noticing this pattern because it's real, or because it's memorable?'
  • Track actual occurrences rather than relying on memory.
  • Be especially cautious of correlations involving rare or distinctive events.

Sources and further reading