International Standard Intelligence Test
The International Standard Intelligence Test is a quantitative, standard measure of intelligence. Two types of individual testing are still widely used today: the Stanford-Binet test and the Wechsler test. Stanford-Binet scale IQ distribution: 140 or above is very excellent (genius); 120-139 is excellent; 110-119 is middle-upper and smart; 90-109 is middle-range; 80-89 is middle-low; 70-79 is critical Insufficient intelligence; below 69 is mental retardation.
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