Dennis is currently 15 years old.His IQ was tested when he was 10, and it was 120.When Dennis is 20 years old his IQ:
A)is likely to be similar to his previous score of 120
B)is likely to be close to 240, nearly double his previous score
C)is likely to be close to 60, about half his previous score
D)will need to be tested again, because IQ scores don't stabilize until early adulthood

Question

Quizplus · Accepted Answer

IQ scores tend to remain relatively stable over time, especially within a five-year period. Therefore, it is likely that Dennis' IQ will remain around 120 when he is 20 years old. While some fluctuations may occur, doubling or halving his previous score (choices B and C) are highly unlikely. A retest may always be recommended (choice D) to assess a more accurate and recent IQ score.

Dennis Is Currently 15 Years Old