{"id":1997,"slug":"kruger-dunning-1999-and-critiques","title":"Kruger & Dunning 1999 — low performers cannot self-assess skill (with caveats)","kind":"reference","scope":"business","status":"current","audiences":["kevin","candid-team"],"topics":["entrepreneurial-overconfidence"],"reference_body":"**Claim:** Kruger & Dunning (1999, *JPSP*) — bottom-quartile performers (actual 12th percentile) estimated themselves at the **62nd percentile**; the unskilled lack the metacognition to recognize incompetence.\n\n**Honest concession:** Serious statistical-artifact critiques exist. Krueger & Mueller 2002 and others argue the pattern is substantially a regression-to-the-mean + better-than-average effect artifact; Nuhfer et al. found little tendency toward inflated self-assessment for most people. **The effect is real but its mechanism and magnitude are contested.**\n\n**Source:** Kruger & Dunning 1999, JPSP. Critiques: Krueger & Mueller 2002.\n\n**Confidence:** Industry-consensus (effect direction); the strong metacognitive-deficit mechanism is contested.\n\n**Why this matters for Candid:** We should not lean hard on a strong DK mechanism. The safer, better-established claim is simply that low performers cannot accurately self-assess skill — which is sufficient justification for the widget's \"observe, do not rate\" design.","rationale_body":null,"metadata":null,"links":{"outgoing":[],"incoming":[{"slug":"research-brief-smb-widget-capture-layer-june-2026","title":"Research brief: SMB widget capture layer — what owners can vs cannot self-report (June 2026)","kind":"reference","scope":"business","link_type":"relates-to"}]},"created_at":"2026-06-23T19:16:00.922Z","updated_at":"2026-06-23T19:16:00.922Z"}