Additional variables that affect the correlation between test scores and criterion scores in a systematic way are known as __________ variables.
A) contaminating
B) dependent
C) independent
D) moderator

Question

Quizplus · Accepted Answer

Moderator variables are additional variables that affect the relationship between the independent and dependent variables (in this case, test scores and criterion scores) in a systematic way. They can influence the strength or direction of the relationship.

Additional Variables That Affect the Correlation Between Test Scores and Criterion