Multiple Choice
Suppose there is a high positive correlation between reading speed and reading comprehension. You suspect that IQ is a potential third variable. You complete a partial correlation procedure and, with IQ controlled statistically, the high correlation between speed and comprehension virtually disappears. What do you conclude?
A) IQ is an important third variable affecting the correlation
B) IQ can be ruled out as a third variable underlying the correlation
C) IQ must be the cause of the correlation
D) not enough information to decide
Correct Answer:
Verified
Correct Answer:
Verified
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