The IQ score was calculated by dividing the test taker's mental age by their chronological age, then multiplying this number by 100. For example, a child with a mental age of 12 and a chronological age of 10 would have an IQ of 120: (12÷10) x 100 = 120.
The nerves in the rest of your body make up your peripheral nervous system. Everything your body does is connected in some way to your nervous system. It tells your heart to beat. It tells your
You can see what that means by looking at the mound above. One standard deviation from the mean, in a normal curve, includes 34.1 percent of the total — in the case of an IQ test, 34.1 percent
The resulting 1905 Binet-Simon Scale became the basis for modern IQ testing. Ironically, Binet actually thought that IQ tests were inadequate measures for intelligence, pointing to the test’s
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