How well do intelligence tests predict performance?
A) IQ scores have a correlation to school performance of +.90.
B) IQ scores have a correlation to school performance of +.50.
C) IQ scores predict performance in elementary school well, but do not predict whether people will complete higher education.
D) IQ scores have little relevance to non-academic aspects of people's lives.

Question

Quizplus · Accepted Answer

IQ scores have a correlation to school performance of +.50, which indicates a moderate positive relationship between the two variables. However, IQ scores alone cannot fully predict academic success or other aspects of people's lives. Other factors such as motivation, personality traits, and socio-economic background also play a role.

How Well Do Intelligence Tests Predict Performance