Pat notices that when thunder can be heard in the distance,her dog,Rudy,hides under her desk,and she believes that the thunder causes Rudy to hide.Her friend Gregg points out that there are other changes associated with thunder,including changes in barometric pressure.Gregg has pointed out a(n)____.
A)random variation
B)control factor
C)covariation bias
D)third variable problem

Question

Quizplus · Accepted Answer

The issue described in the scenario is the possibility of a third variable, in this case changes in barometric pressure, causing both the thunder and Rudy's behavior. This is known as the third variable problem.

Pat Notices That When Thunder Can Be Heard in the Distance,her