Compare these two correlation coefficients: a = .4 and b = .8
A)8 is twice as strong as .4
B)8 is three times as strong as .4
C)8 is four times as strong as .4
D)these correlation coefficients are equally strong

Question

Quizplus · Accepted Answer

The strength of a correlation is determined by the square of the correlation coefficient. Squaring .8 gives .64, and squaring .4 gives .16. .64 is four times as strong as .16, making choice C correct.

Compare These Two Correlation Coefficients: a =