This exercise describes research on the effects of drinking and driving. However, this study is flawed and you are to suggest ways to correct the errors. Dr. Moesteller has long been interested in the effects of alcohol on human behavior. His latest experiment involved giving college students one of three kinds of drinks: 3 oz. of 100 proof vodka mixed with a standard size glass of orange juice, 2 oz. of 100 proof vodka mixed with a small glass of orange juice, or 3 oz. of a nonalcoholic but vodka-flavored substance mixed with a standard size glass of orange juice. Dr. Moesteller recruited some of his subjects from the school's track team, which was easy because he is the assistant coach. He recruited the rest of his subjects from his introductory psychology class. Dr. Moesteller assigned the women on the track team to the 2 oz. vodka group, the men from his class to the 3 oz. vodka group, and the women from his class to the nonalcoholic group. The women on the track team participated right after they finished practicing, and students from his class participated at various times during the day. After each group had a chance to drink the beverage, he had them sit in an automobile simulator where their task was to step on the brake every time they saw a red light. Much to his surprise, the 2 oz. group showed slower reaction times to the red light than the 3 oz. group. The nonalcoholic group was the quickest to react. As soon as the experiment was over, he explained to the subjects the true purpose of the experiment and had them sign an informed consent form. From his analysis of the results, Dr. Moesteller concluded that drinking alcoholic beverages can slow reaction time for braking in college students who drive after drinking. In the space below, give Dr. Moesteller some advice on how he might improve his research on drinking