In order to establish an unambiguous relationship between two variables, it is necessary to eliminate the possible influence of ____ variables.
A) extraneous
B) confounding
C) independent
D) dependent

Question

Quizplus · Accepted Answer

Confounding variables are variables that are related to both the independent and dependent variables, and can lead to an incorrect relationship between the two if not controlled or eliminated. Extraneous variables are similar to confounding variables, but are not related to both the independent and dependent variables. Independent and dependent variables are related to each other, but eliminating their possible influence would not establish an unambiguous relationship.

In Order to Establish an Unambiguous Relationship Between Two Variables