Two Matched Groups If the matching variable is not highly correlated with the dependent variable,
A)less powerful statistical tests must be used to analyze the data.
B)the effect size will be inflated.
C)the chances of detecting the effect of the experimental manipulation may be reduced.
D)this will result in statistical regression threat.

Question

Quizplus · Accepted Answer

If the matching variable is not highly correlated with the dependent variable, the chances of detecting the effect of the experimental manipulation may be reduced. This is because the matching variable is used to control for individual differences between the two groups, and if it is not strongly related to the outcome variable, then it may not effectively eliminate these differences. Therefore, the best choice is C.

Two Matched Groups If the Matching Variable Is Not Highly