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Lesson Summary. In summary, IQ stands for intelligence quotient, which is your cognitive abilities, relative to what others can do of different ages. The concept of IQ was invented in the year 1904 by Alfred Binet. The equation used to calculate a person's IQ score is Mental Age / Chronological Age x 100.
The average IQ is 100. Have you wondered what your IQ score is? Our original IQ Test will give you a fast, free and accurate iq score. Take our quick free IQ test and find out just how smart you are. A person's Intelligence Quotient (IQ) is, arguably, one of their most important characteristics.