High School

A 12-year-old who responded to the original Stanford-Binet test with the proficiency typical of an average 9-year-old was said to have an IQ of ________.

1) 75
2) 85
3) 115
4) 125
5) 133

Answer :

Final answer:

A 12-year-old who performs at the level of an average 9-year-old on the Stanford Binet test would have an IQ score of 85, indicating an average level of intelligence.

Explanation:

The IQ test measures a person's intelligence quotient, which is a score that represents a person's cognitive abilities compared to the average population. On most IQ tests, the average score is 100, and each standard deviation is 15 points. In the case of the Stanford Binet test, a 12-year-old who performs at the level of an average 9-year-old would have an IQ score of 85. This score is considered to be within one standard deviation below the mean, indicating an average level of intelligence.

Other Questions