Eppie's Used Cars wanted to discover whether straight discounting worked better than a free gift. It ran two different television commercials on alternate Wednesdays. Commercial A offered 20 percent off Blue Book price for any four-wheel-drive vehicle on the lot while Commercial B offered a free tent with the purchase of any four-wheel-drive vehicle at Blue Book price. The offer was what is called the experimental independent variable. Whether it was cold or rained when any of the commercials ran is an extraneous independent variable. How many people responded to each type of offer is called the ___, and would suggest whether straight discounting or a gift incentive was the better strategy for increasing traffic.
A.
marketing variable
B.
dependent variable
C.
market potential variable
D.
observational variable
Answer: B