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28 February, 05:10

Demetrius, a 10-year-old, is taking the original Stanford-Binet intelligence test. If he consistently answers questions correctly at the level of a 12-year-old, then according to Wilhelm Stern's original scoring method, Demetrius's intelligence quotient is:

a. 100.

b. 120.

c. 80.

d. 110.

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Answers (2)
  1. 28 February, 06:41
    0
    b. 120.

    Explanation:

    Intelligence test is defined as a psychological test that is prepared to determine the mental capacity to make abstractions, to learn, and to deal with novel situations.

    In other words, it is a test that is desgined to measure level of intelligence.

    Scores may be presented as an IQ (intelligence quotient), as a mental age, or on a scale.

    Hence, Wechsler intelligence tests which was developed by a clinical psychologist David Wechsler are a widely used series of intelligence tests, designed to examine specific and overall cognitive capabilities and is individually administered to young kids, adolescents and adults between ages 6-89.

    Hence, the IQ was originally calculated as the ratio of a person's mental age to his chronological (physical) age, multiplied by 100.

    In this case, Demetrius age is 10 years, and has a mental age of 12years (this means that, he performed on the test at the level of an average 12-year-old), then the IQ is measured as 12/10 * 100 = 120

    Hence, answer is 120.
  2. 28 February, 07:19
    0
    Answer is B. 120

    Refer below.

    Explanation:

    Demetrius, a 10-year-old, is taking the original Stanford-Binet intelligence test. If he consistently answers questions correctly at the level of a 12-year-old, then according to Wilhelm Stern's original scoring method, Demetrius's intelligence quotient is:

    120
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