An intelligence quotient - IQ - is a total score derived from several standardized tests designed to evaluate human intelligence. The term IQ appeared in 1912 and was invented by psychologist William Stern. The IQ coefficient can take values ??between 1 and 200. Beyond 200 momentarily can not be measured. The majority of the population is between 85 and 115. IQ tests are designed to track the analytical intelligence of the people. We try every day to find together with our publishers the newest tests that will give you a try. Good luck!