Holding a variable constant prevents a participant characteristic from confounding a study by ____.
A) eliminating variability in that characteristic
B) reducing error
C) ensuring a nonbiased sample
D) increasing the differences between the groups

Question

Quizplus · Accepted Answer

Holding a variable constant eliminates its variability, which in turn allows for better control of other factors being studied. This helps to isolate the effects of the independent variable and reduce confounding factors.

Holding a Variable Constant Prevents a Participant Characteristic from Confounding