Development of children

For the first time, the idea of ​​quantitatively determining the level of intellectual development of children with the help of tests was proposed in 1903. Its developer was the French psychologist A. Bina, but the term «IQ» itself was applied by the Austrian psychologist in. Stern only in 1911. By bin, the standard of knowledge achieved and practical skills inherent in each age period (in years) was equal to 100 points. The lead or lag in mental development was interpreted by deviations from this standard.