Noise
Consistency is part of decision quality, not merely neatness.
Big Idea
Kahneman, Sibony, and Sunstein distinguish unwanted variation in judgments from systematic bias.
Unwanted variation
Similar cases can receive different judgments even when relevant facts are alike.
Bias versus noise
Bias shifts judgments in a direction; noise scatters judgments unpredictably.
Noise audits
Comparing independent assessments can reveal variation that an organization did not notice.
Decision hygiene
Structured criteria and independent judgments can reduce avoidable inconsistency.
Human consequences
In hiring, justice, or medicine, inconsistent assessments can carry serious costs.
Notooo Take
Compare independent ratings before discussing a shared conclusion.
One Thing to Keep
Consistency is part of decision quality, not merely neatness.