If there is a .75 correlation between the hours that students devote to studying and their grades, _____ between these two measures.
A)a third variable, such as motivation and interest may account for the relationship
B)we can conclusively say that this strong correlation indicates a causal relationship
C)there is a weak, almost non-existent relationship
D)there is a strong negative correlation

Question

Quizplus · Accepted Answer

Just because there is a strong correlation between the hours a student devotes to studying and their grades does not mean there is a causal relationship. There could be other factors, such as motivation or interest, that affect both variables. Therefore, it is likely that a third variable accounts for the relationship.

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