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).
At least two major consensus definitions of intelligence have been proposed. Individuals differ from one another in their ability to understand complex ideas, to adapt effectively to the environment, to learn from experience, to engage in various forms of reasoning, to overcome obstacles by taking thought.