Research challenges claim overconfidence helps kids learn

By Stephen Beech

Cocky kids don't have an advantage in the classroom after all, according to new research.

Previous studies have suggested that inflated confidence may help young children learn.

Believing they can succeed, the theory goes, may encourage them to persist longer at difficult tasks and eventually see performance improvements.

But new research, published in the journal Psychological Science, suggests that the apparent learning advantage may just be a statistical illusion.

The Chinese study found that the reported benefit could be explained by how children were sorted into groups and by a common statistical pattern called regression to the mean.

When the research team experimentally increased or decreased children's confidence, they found no difference in performance changes between the two groups.

Study lead author Mengqi Hu said: "Parents and educators should be cautious about assuming that inflated confidence will improve children's learning.

"Encouraging children to believe they are more capable than they actually are may create positive feelings, but our results indicate that such illusory beliefs do not necessarily translate into better performance."

The idea that overconfidence might aid learning gained traction following a 2007 study found that highly overconfident children showed more favorable performance changes during a memory task.

Youngsters predicted how many words they would remember before studying and recalling each list.

Although most overestimated their recall, those classified as highly overconfident appeared to improve more, or decline less, than their less-overconfident peers.

The researchers suggested that inflated confidence might promote persistence and engagement, making it potentially adaptive.

Despite being widely cited, the 2007 study's findings have never been replicated.

Hu and her colleagues set out to replicate the earlier findings and determine whether overconfidence actually causes children's performance to improve.

Their investigation unfolded in three stages.

First, the researchers replicated the 2007 study with 30 children, between 6 and 8 years old.

On the surface, the highly overconfident group appeared to fare better, showing a smaller decline in recall than the less-overconfident group.

But a closer look showed that the apparent advantage did not reflect better learning.

Instead, it arose from differences between the groups at the start of the task.

Hu, a doctoral student at Beijing Normal University, said: "The highly overconfident group started with lower recall, whereas the two groups did not differ in their later recall performance."

She says that pattern raised a critical question whether the original study's methods make overconfidence appear beneficial even when it had no effect on learning.

To find out, the research team turned to computer simulations.

They created four models, each simulating data from 1,000 children under different assumptions.

In one model, overconfidence had no effect on learning.

Even so, when the research team analyzed the simulated data using the 2007 study's methods, the apparent advantage reappeared.

The simulation showed that the analysis itself could create the impression that overconfidence helped children learn.

The simulations demonstrated how the apparent advantage could arise, but they did not establish whether overconfidence itself affected performance.

To test that question experimentally, the research team randomly assigned 64 children to receive feedback intended to make them more or less overconfident.

The children wore what they were told was an EEG-based device for assessing their memory.

Before each task, half were falsely told that the assessment showed they had excellent memory; the others were told that their memory was poor.

The feedback successfully changed the children's confidence, but it did not change how their recall changed over the course of the task.

The two groups performed similarly.

But when the researchers analyzed the results using the 2007 study's grouping method, the apparent advantage of overconfidence returned.

The team found that the problem lays in how children were assigned to the groups.

They measured overconfidence by subtracting a child's actual recall score from the number of words the child predicted they would remember.

As a result, children with unusually low initial recall scores were more likely to be classified as highly overconfident.

Those with unusually high scores were more likely to be classified as less overconfident.

The researchers then used those same initial recall scores to measure how much the children's performance changed.

But unusually low or high scores often move closer to the average when measured again, simply because of natural variation.

The pattern, known as regression to the mean, made children who started with low scores appear to improve more, or decline less, even when overconfidence had no effect.

Hu said: "Taken together, these findings suggest that the previously reported learning advantage reflected a methodological artifact rather than a genuine benefit of childhood overconfidence."

However, she emphasized that the findings don't diminish the value of optimism or encouragement.

Hu added: "The key is to distinguish supportive encouragement from exaggerating a child's competence.

"In practice, feedback may be more useful when it is grounded in children's actual effort, strategies, and progress, while also helping them recognize where improvement is needed."