GROWTH DEVELOPMENT CHILD
MEASUREMENT OF INTELLIGENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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fraternal twins
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identical twins
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nontwin siblings
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parent and child
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Detailed explanation-1: -Identical twins reared apart are more similar in IQ than siblings reared together.
Detailed explanation-2: -It was found that identical twins have IQ scores that are more similar than the IQ scores of fraternal twins. Even identical twins who were raised in separate households were found to have IQ’s that were more similar than that of fraternal twins raised together.
Detailed explanation-3: -Knowing the intelligence score of one fraternal twin raised together with their sibling allows predicting the other twin’s score with an accuracy of 55%. For identical twins reared together the percentage goes up to 86%, while for identical twins reared apart the percentage drops slightly, to 76%.
Detailed explanation-4: -The correlation of intelligence test scores for identical twins raised together is about +. 85. For identical twins raised apart, the correlation is about +. 72.
Detailed explanation-5: -The most commonly used individual IQ test series is the Wechsler Adult Intelligence Scale (WAIS) for adults and the Wechsler Intelligence Scale for Children (WISC) for school-age test-takers.