11
QuizMultiple Choice

Experimental Design

Question 11 • 53040de1 ECAD Fall 2026 - Q2 - Psychology - S1

Which of the following statements about extraneous variables is not accurate?

Answer
A
An extraneous variable can also be a confounding variable.
B
An extraneous variable clarifies the relationship between the independent and dependent variables.
C
An extraneous variable can alter the results of an experiment in an undesired way.
D
An extraneous variable cannot be the same as an independent variable.

Explanation

An extraneous variable is a factor other than the independent variable that may affect the dependent variable. It can distort or obscure the relationship being studied, rather than clarify it. Therefore, the statement that an extraneous variable clarifies the relationship is not accurate; the correct choice is B, “An extraneous variable clarifies the relationship between the independent and dependent variables.”

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