The IQ is the ratio of "mental age" to chronological age, with 100 being average. So, an 8 year old who passes the 10 year-old's test would have an IQ of 10/8 x 100, or 125. Binet's work set off a ...
a 10-year-old twin from Hounslow, West London, has been described as a genius, excelling in a range of fields from mathematics to music. Recently, he scored an impressive 162 on an IQ test ...