Current Wentzville, Missouri Population, Demographics and stats in 2016, 2017.
David Wechsler. developed an intelligence test for adults in the US (WAIS), an intelligence test for children (WISC, which has been revised and is now the WISC-IV), and an intelligence test for preschool (WPPSI).
Binet and Simon made two more revisions of their intelligence test before Binet died in 1911. Then in 1916, Lewis Terman of Stanford University incorporated the concept of IQ into the test and it was renamed the Stanford-Binet Intelligence Scale.