Binet developed his IQ test as a method of identifying students who had problems doing well in school, and, indeed, he succeeded, as IQ tests are very much correlated with academic success. But since Binet’s time many researchers have argued that the IQ test measures general abilities that are correlated with success in virtually any domain, such as music and chess
— 📖 Peak - Secrets from the New Science of Expertise making a nice opening for IQ criticism