GROWTH DEVELOPMENT CHILD
INDIVIDUAL DIFFERENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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100
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120
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10
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12
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Detailed explanation-1: -IQ was originally computed by taking the ratio of mental age to chronological (physical) age and multiplying by 100. Thus, if a 10-year-old child had a mental age of 12 (that is, performed on the test at the level of an average 12-year-old), the child was assigned an IQ of 12/10 × 100, or 120.
Detailed explanation-2: -Hence, the required mental age for a group of 12-year children is 9.6 years or more and 16.8 years or less. where MA is mental age and CA is chronological age.
Detailed explanation-3: -Hence, we conclude that a student’s chronological age is 12 years and mental age is 14 years.
Detailed explanation-4: -IQ would be 14/13 x 100 = 107.69 Thus, it is concluded that if the actual age of the child is 13 years and mental age is 14 years, then 107.69 will be the Intelligence Quotient.
Detailed explanation-5: -It’s not uncommon for someone to have a different mental age versus their chronological age. In fact, it was originally thought that the average mental age of adults was 16-but was later found to be about 13.5.