Empiriceme · Evidence · Bias / Effect

Belief Perseverance

Beliefs survive the discrediting of the evidence that produced them.

Ross and Lepper gave subjects fake feedback on a task, then fully debriefed them. Self-assessments remained shifted afterwards — the belief outlived the evidence that had been explicitly withdrawn.

In practice

  • A team is shown that the incident data behind their reliability estimate was miscoded, and the estimate persists in every subsequent conversation.
  • A candidate is cleared of the allegation that ended their shortlisting, and is not re-shortlisted.
Further reading
Wikipedia
Subject
Decision-making & Reasoning
Essay
The catalogue of predictable errors

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