Average IQ varies depending on geographic location, resource access, and much more.

New research complicates the old consensus that IQ is largely fixed, and that's good news for anyone looking to boost their ...

According to Mensa International, IQ is a score that identifies how far above or below someone is in comparison to others' mental ability. The term was coined in 1912, and since then, IQ tests have ...

Retraction: On August 3, the BBC reported that the company and its purported study are an apparent hoax. We regret the error. Original story: Web users are constantly ...