29 dic 1938 anni - David Wechsler Creates the Wechsler–Bellevue Intelligence Scale

Descrizione:

Wechsler agrees with Binet who thought intelligence was many factors and not just one. Wechsler categorizes intelligence into three categories; the ability to act with purpose, to think rationally and to deal effectively with one's environment. Through this organization of intelligence he creates a new IQ test.

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