GROWTH DEVELOPMENT CHILD
COGNITION AND EMOTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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reaction range
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normal curve
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percentile score
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norm
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Detailed explanation-1: -Early twin studies of adult individuals have found a heritability of IQ between 57% and 73%, with some recent studies showing heritability for IQ as high as 80%.
Detailed explanation-2: -Reaction range refers to limits set on IQ by heredity. Environment determines where IQ will lie within these limits. There is a discrepancy in IQ scores between whites and some minority groups.
Detailed explanation-3: -Researchers have previously shown that a person’s IQ is highly influenced by genetic factors, and have even identified certain genes that play a role. They’ve also shown that performance in school has genetic factors. But it’s been unclear whether the same genes that influence IQ also influence grades and test scores.