Multiple Choice
The third-variable problem means that:
A) a correlational study with fewer than three variables is invalid.
B) if two predictor variables are shown to be important predictors of the value of a criterion variable, then there is probably a third important predictor variable as well.
C) in a correlational study there may be a third, unobserved variable that actually causes changes in the observed variables.
D) None of the answers is correct.
Correct Answer:
Verified
Correct Answer:
Verified
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