GROWTH DEVELOPMENT CHILD
INTELLIGENCE AND ITS THEORIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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actual age x grade / 100
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mental age x actual age
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mental age / actual age x 100
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actual age / mental age x 100
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Detailed explanation-1: -An individual’s mental age is then divided by his chronological age and multiplied by 100, yielding an intelligence quotient (IQ). Thus, a subject whose mental and chronological ages are identical has an IQ of 100, or average intelligence.
Detailed explanation-2: -The IQ of person is given by the formula, IQ=mc×100, where m is the mental age and c is the chromological age. If 80≤IQ≤140 for a group of 12-year children, find the range of their mental age.
Detailed explanation-3: -a numerical scale unit derived by dividing an individual’s results in an intelligence test by the average score for other people of the same age. Thus, a 4-year-old child who scored 150 on an IQ test would have a mental age of 6 (the age-appropriate average score is 100; therefore, MA = (150/100) × 4 = 6).
Detailed explanation-4: -It provided a formula to measure the IQ that is dividing the person’s mental age by his chronological age and then multiplying the result with 100. Here, 100 is multiplied to avoid the fractions in the result of the division.
Detailed explanation-5: -In 1912, William Stern, a German psychologist, devised the concept of Intelligence Quotient (IQ). IQ refers to mental age divided by chronological age and multiplied by 100. The number 100 is used as a multiplier to avoid the decimal point. When the MA equals the CA, the IQ equals 100.