Intelligence quotient, usually shortened to IQ, is a measure of how well someone uses information, logic, and reasoning compared to their peers. The first test for measuring IQ was developed by ...

An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see. Instead of perceiving an image ...

This is a straightforward vocabulary test, so if you've ever taken the SATs, this will feel totally familiar. Take the quiz here. It's highly unlikely you'll ever need to write something without spell ...

New technologies have revolutionized every aspect of our lives, from communication to healthcare, education, and beyond. In a world increasingly defined by innovation, intelligence—our ability to ...

University of Liverpool provides funding as a founding partner of The Conversation UK. London School of Economics and Political Science provides funding as a member of The Conversation UK. Most adults ...

Lawrence Whalley received funding from Scottish Government, Henry Smith Charity, BBSRC, MRC, Alzheimer's Research Trust, The Wellcome Trust. Many people object to intelligence tests. Some say IQ test ...

You might have heard of the theory of Multiple Intelligences, but what is the evidence behind it? If there aren't multiple intelligences, are there multiple abilities? In what ways can intelligence ...