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Decision fatigue

A compact thinking tool for spotting patterns and avoiding mistakes.

  1. The useful idea

    In decision making and psychology, decision fatigue refers to the deteriorating quality of decisions made by an individual after a long session of decision making.

  2. How it works

    It is now understood as one of the causes of irrational trade-offs in decision making.

  3. Why it matters

    Decision fatigue may also lead to consumers making poor choices with their purchases.

Use Decision fatigue as a quick check before trusting your first conclusion.

Use Decision fatigue as a quick check before trusting your first conclusion.

Test your recall

Which idea belongs to the explanation of Decision fatigue?

  • How it works
  • The useful idea — correct
  • Why it matters

In decision making and psychology, decision fatigue refers to the deteriorating quality of decisions made by an individual after a long session of decision making.

EvergreenLast verified 2026-07-19

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