https://toptradeguru.com/news/opinion/childrens-iq-dropped-21-during-pandemic/

"Absolutely stunning.

In the decade preceding the pandemic, the mean IQ score on standardized tests for children aged between three months and three years of age hovered around 100, but for children born during the pandemic that number tumbled to 78.

With limited stimulation at home and less interaction with the world outside, pandemic-era children appear to have scored shockingly low on tests designed to assess cognitive development, said lead study author Sean Deoni, associate professor of pediatrics at Brown University.

“It’s not subtle by any stretch,” said Deoni. “You don’t typically see things like that, outside of major cognitive disorders.”"