Two variables are confounded if
A)their effects on the treatments cannot be ascertained.
B)their effects on the sampling design cannot be observed.
C)their effects on the response variable cannot be distinguished.
D)their effects on the experimental design cannot be justified.
E)their effects on the blocking factor cannot be measured.

Question

Quizplus · Accepted Answer

When two variables are confounded, it means that their effects on the response variable cannot be distinguished. This is because the two variables are so closely related that their effects on the response variable cannot be separated. This can lead to incorrect conclusions about the relationship between the response variable and the explanatory variable of interest.

Two Variables Are Confounded If