Laura is 8;her performance on a series of tasks is equivalent to that of the average 10-year-old.Her intelligence quotient is:
A) 125.
B) 80.
C) 110.
D) 150.

Question

Quizplus · Accepted Answer

Laura's intelligence quotient (IQ) is calculated as follows:IQ = (Mental age / Chronological age) x 100Mental age = 10 years (average performance of a 10-year-old)Chronological age = 8 yearsIQ = (10 / 8) x 100 = 125

Laura Is 8;her Performance on a Series of Tasks Is