A pharmaceutical company has created a new drug that it believes will help students learn more effectively. Describe how you would construct a randomized controlled trial on your college campus to assess this theory. Be as specific as possible regarding how you would recruit subjects, conduct the experiment, assess outcomes, and so on. Discuss some of the logistical and ethical obstacles you might face in conducting this trial. What problems might arise in your drawing a general conclusion about the efficacy of the drug from the trial you describe?