Beijing Normal University finds overconfidence doesn't improve child learning

A team from Beijing Normal University re‑examined the claim that children’s inflated confidence boosts learning. The idea originated from a 2007 study that reported highly overconfident 6‑ to 8‑year‑olds showed smaller declines in a memory task. The new research replicated the original experiment with 30 children, generated 1,000 simulated data sets, and then experimentally altered children’s confidence using false feedback. While the first replication superficially reproduced the earlier pattern, the experimental manipulation revealed no performance difference between high‑ and low‑confidence groups. The authors concluded that the apparent advantage was a statistical illusion caused by regression to the mean and group‑sorting methods. Lead author Mengqi Hu warned that parents and educators should not assume that encouraging unrealistic self‑belief will enhance academic outcomes.