If the R squared between brain size and IQ is .09 then
A) 9% of your IQ is accounted for by variability in brain size.
B) 91% of your IQ is accounted for by variability in brain size.
C) 9% of the variability in IQ is accounted for by variability in brain size.
D) 91% of the variability in IQ is accounted for by variability in brain size.

Question

Quizplus · Accepted Answer

The R squared value represents the proportion of variance in one variable (IQ) that can be explained by the other variable (brain size). Therefore, option C is the correct choice which states that 9% of the variability in IQ is accounted for by variability in brain size.

If the R Squared Between Brain Size and IQ Is