On the Stanford-Binet Intelligence Scale, Susan answered fewer items correctly than her friend Keri. Yet, Susan's IQ score was higher than Keri's. How can this be possible?
A)Susan is older than Keri.
B)Susan is younger than Keri.
C)Susan and Keri are the same age.
D)None of these explain this situation

Question

Quizplus · Accepted Answer

The Stanford-Binet Intelligence Scale adjusts scores for age, meaning a younger child answering fewer questions correctly can still have a higher IQ score than an older child who answers more questions correctly, because the younger child's performance is compared to age peers, not the absolute number of correct answers.

On the Stanford-Binet Intelligence Scale, Susan Answered Fewer Items Correctly