Add Yahoo as a preferred source to see more of our stories on Google. These quizzes won't give you an exact IQ number, but they will tell you how smart you are by testing your expertise in various ...

Today's New York Times questions whether standardized, intelligence tests should be relied upon so heavily for admission to universities. In my training as a clinical psychologist in the 1980s, I ...

Asking people to exert more effort on a test of mental ability does not actually improve their score. A recent study ...