A confounding variable is one which
A) has no relationship with the dependent variable.
B) is controlled and does not affect the outcome.
C) is not controlled and affects the outcome.
D) a and b

Question

Quizplus · Accepted Answer

A confounding variable is an extraneous variable that has not been properly controlled, and it affects the relationship between the independent and dependent variables, leading to erroneous conclusions. Therefore, option C is the correct choice. Option A is incorrect because a variable that has no relationship with the dependent variable cannot be a confounding variable. Option B is incorrect because if a variable is controlled, it cannot act as a confounding variable. Option D is also incorrect because option A is not always true, and option B is not sufficient to explain the concept of confounding variables.

A Confounding Variable Is One Which