Answer :
Final answer:
Gary's Wechsler IQ test score of 103 means that he has an average IQ for his age. It does not indicate exceptional intelligence or an intellectual disability, as his score is close to the standard average of 100. So the correct answer is D. Gary has an average IQ for his age.
Explanation:
Gary's Wechsler IQ test score of 103 indicates that Gary has an average IQ for his age. The score of 103 is close to the average IQ score, which is set at 100. An IQ score of 100 means a child is performing intellectually at the benchmark level for their chronological age. Since IQ is a standard score with a mean of 100, a score of 103 suggests a slightly above average intelligence, but not exceptionally so.
Around 3% of the population score above an IQ of 130, which is the threshold for giftedness, and about the same percentage score below an IQ of 70, which can be indicative of intellectual disability. However, Gary's score does not fall into either of these extremes. The Wechsler intelligence score is part of a normal distribution, which shows that most people cluster around the average intelligence level, and Gary's score is consistent with this distribution.
