TESTING AND INDIVIDUAL DIFFERENCES
THE DYNAMICS OF INTELLIGENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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70
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100
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115
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125
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Detailed explanation-1: -Terman maintained the concept of mental age in devising his formula for calculating the intelligence quotient (IQ). The formula is IQ = mental age/chronological age multiplied by 100. Thus if the child’s mental age equals her chronological age, her IQ will equal 100.
Detailed explanation-2: -Terman, who in 1921 initiated a study of more than 1, 500 gifted children with IQs higher than 140. Following the study participants as they aged, Terman observed a greater drive to achieve, along with greater mental and social adjustment, among the gifted group as compared with nongifted children.
Detailed explanation-3: -The simple formula for how to determine mental age is IQ=MA/CA*100.
Detailed explanation-4: -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.