Function: noun
Date: 1910
: a measure used in psychological testing that expresses an individual's mental attainment in terms of the number of years it takes an average child to reach the same level
Function: noun
Date: 1910
: a measure used in psychological testing that expresses an individual's mental attainment in terms of the number of years it takes an average child to reach the same level
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012