In a laboratory,smokers are asked to "drive" using a computerized driving simulator equipped with a stick shift and a gas pedal.The object is to maximize the distance covered by driving as fast as possible on a winding road while avoiding rear-end collisions.Some of the subjects smoke a real cigarette immediately before climbing into the driver's seat.Others smoke a fake cigarette without nicotine.You are interested in comparing how many collisions the two groups have.In this study,the dependent variable is:
A)the use of nicotine.
B)the use of a driving simulator.
C)the number of collisions.
D)the driving skills of each driver.

Question

Quizplus · Accepted Answer

The dependent variable in the study is the number of collisions, which is being compared between the group of smokers who smoke real cigarettes and the group who smoke fake cigarettes. The use of nicotine, the driving simulator, and the driving skills of each driver are all independent variables that are controlled in the study.

In a Laboratory,smokers Are Asked to "Drive" Using a Computerized