Wendy has determined that the correlation between her reading screening test and her students' reading grades is .30.What percent of the variation in reading scores is accounted for by knowing the students' scores on the
Screening test?
A)9
B)30
C)60
D)90

Question

Quizplus · Accepted Answer

The percentage of variation accounted for by the correlation is found by squaring the correlation coefficient (r) and converting it to a percentage. Here, r = 0.30, so r^2 = 0.09, which is 9%.

Wendy Has Determined That the Correlation Between Her Reading Screening