HISTORY OF IQ TEST

History of IQ Test

History of IQ test

Technically speaking, the first IQ test was developed by French psychologist, Alfred Binet in 1905. His test has provided the base for all modern IQ tests that are widely used today. However, the interest of scientists and psychologists in intelligence dates back to thousands of years. Fascinated by Darwin's theory, Sir Francis Galton, a British scientist, tried to discover the relationship between heredity and human ability.

Belgian statistician Quetelet then applied statistical methods to the study of human characteristics and had discovered the concept of normal distribution. He discovered the ...