Bai is conducting a study on learning.When she manipulates an independent variable,it is possible that some other factor,such as noise in the hall,can affect learning in one of the groups but not in the other.This possibility reflects the presence of:
A) a confound
B) a dependent variable
C) selection bias
D) random assignment

Question

Quizplus · Accepted Answer

The presence of a confound means that there is an extraneous variable that is not controlled for in the study, which can affect the results. In this case, noise in the hall is a confounding variable that can affect learning in one group but not the other.

Bai Is Conducting a Study on Learning