In which research situation below would an extraneous variable become a confounding variable?
A) An extraneous variable varies systematically along with the two variables being studied.
B) Two or more extraneous variables vary systematically with each other.
C) An extraneous variable is not directly investigated as part of the research question.
D) There are more than two extraneous variables present.

Question

Quizplus · Accepted Answer

An extraneous variable becomes a confounding variable when it varies systematically with the independent variable and may potentially influence the dependent variable, thus making it difficult to determine the true source of any observed effects.

In Which Research Situation Below Would an Extraneous Variable Become