IQ test, which stands for "Intelligence Quotient," is a standard score that tells you how much smarter or less smart than your peers are. The average score for this group is 100. By giving the same test to a huge group of people from all walks of life and then getting the average, the IQ number is found.
For the first time, in 1912, psychologist William Stern used the formula "mental age...
Arabic
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek