In addition to influencing the dependent variable, a confounding variable must also:

a. be a subject variable.
b. have more than two levels.
c. covary with the independent variable.
d. change the relationship between the independent variable and the dependent variable.
Anonymous User
Anonymous User
Asked Oct 17, 2014

TIP: If it's not your answer to this question, please click "Leave a Comment" button under the question to communicate with the question owner.