Nuisance variables make it ________ to see the differences between groups.
A) easier
B) harder
C) sometimes easier and sometimes harder
D) None of the above; nuisance variables do not affect differences between groups.

Question

Quizplus · Accepted Answer

Nuisance variables introduce variability that is not of interest to the researcher, making it harder to detect the true differences between groups.

Nuisance Variables Make It ________ to See the Differences Between