To Test Your Hawk-Eye Vision, Try to Find All the Errors in this Poultry Farm Within 11 Seconds! Try This: If You Possess ...

Research has shown the potential for racial and class bias in IQ testing, so schools are slowly moving away from the practice — but not fast enough for many parents and researchers. Credit: Camilla ...

Spot the hidden number 3 in a 9-second brain teaser optical illusion that tests observation, IQ, and visual perception skills ...

Interest in intelligence dates back more than a century. However, it wasn't until psychologist Alfred Binet was asked to ...

This story about intelligence testing in schools was produced by the Hechinger Report, a nonprofit, independent news organization focused on inequality and innovation in education. Sign up for the ...