Suppose Apple is considering increasing its advertising expenditures to promote the most recent iPhone. To try to assess the effect of such a move, it looks at sales in several small markets. In some of these markets Apple increased advertising expenditures by 30% and in others there was no change. When conducting this "experiment," what is the treatment?
A) iPhone sales in the small markets that were studied
B) The number of small markets that received an increase in advertising expenditures
C) The increase in advertising expenditures
D) The increase in iPhone sales in markets experiencing the increase in advertising expenditures

Question

Quizplus · Accepted Answer

The treatment in this experiment is the increase in advertising expenditures by 30%. This is the factor that is being manipulated to see if it has an effect on iPhone sales. The other choices are not the treatment because they are either outcomes (iPhone sales) or irrelevant factors (number of small markets).

Suppose Apple Is Considering Increasing Its Advertising Expenditures to Promote