A 6-year-old and a 9-year-old both take the Wechsler Intelligence Scale for Children (WISC) and get exactly the same number of items correct. Who has the highest intelligence quotient (IQ)?
A) the 6-year-old
B) the 9-year-old
C) If both children got the same number of items correct, their IQs should be the same.
D) There is no way of telling, as the children are of different ages.

Question

Quizplus · Accepted Answer

The Wechsler Intelligence Scale for Children (WISC) calculates IQ scores based on a child's performance relative to age norms. Since the 6-year-old scored the same as the 9-year-old, the 6-year-old's performance is more impressive relative to their age group, resulting in a higher IQ score.

A 6-Year-Old and a 9-Year-Old Both Take the Wechsler Intelligence