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).
This notion of collective intelligence is referred to as Symbiotic intelligence by Norman Lee Johnson. The concept is used in sociology, business, computer science and mass communications: it also appears in science fiction.