Overconfidence Effect
The family of biases in which confidence outruns accuracy — not one effect but three that are routinely conflated.
Full definition of Overconfidence Effect →:: COMPARE ::
Overconfidence effectvsDunning–Kruger effect
The short answer
Related, not interchangeable. Overconfidence names the measurement family; Dunning–Kruger names one pattern inside it — and mixing them is how 'better than average' evidence gets cited for claims about people overestimating their scores.
Side by side
| Aspect | Overconfidence effect | Dunning–Kruger effect |
|---|---|---|
| Is a | Family of three | One pattern |
| Concerns | Confidence vs accuracy | Skill vs self-assessment |
| Reverses on hard tasks | Yes, by type | Yes |
| Named | 2008 (the split) | 1999 |
What each one means
Dunning–Kruger effect
The contrast above sets out how Dunning–Kruger effect differs from Overconfidence Effect on the points that actually matter.