Dunning-Kruger Effect
Confidence and measured performance can be poorly calibrated on a defined task, but the familiar claim that the least skilled are uniquely overconfident is contested.
Public evidence overview
One checked source, with its limits.
This preview is not the complete evidence base. Use it as a question to investigate in your own product, not as a prediction of what an individual will do.
Reevaluating the Dunning–Kruger Effect: A Response to and Replication of Gignac and Zajenkowski (2020)
Research-assisted source review
- What it supports
- The analysis found a statistically significant Dunning–Kruger pattern at lower ability, but the estimated effect was small.
- Where it may not transfer
- This response concerns intelligence estimates rather than all task performance, and a statistically significant curve does not establish the original causal account. The small effect conflicts with the exaggerated popular stereotype.
See how sources and limitations are checked in our editorial method.
Member depth
Continue into the complete evidence and application.
Practitioner includes the complete checked source set, study context and practical takeaways for this ingredient. The public overview above remains available without upgrading.