Study A. College students are used to test the hypothesis that carbohydrate cravings increase as a person’s level of depression increases. To test this hypothesis, the experimenter randomly assigns...

Study A. College students are used to test the hypothesis that carbohydrate cravings increase as a person’s level of depression increases. To test this hypothesis, the experimenter randomly assigns participants to three groups and then administers a moodinduction technique that will temporarily induce different types of moods. One version of the mood-induction technique is administered to one group to induce a depressed mood, another version is used to induce an elated mood in a second group, and a third version is administered to the third group to ensure that their mood does not change. After the mood-induction procedure has been administered to each group, the participants provide an assessment of the extent to which they experience carbohydrate cravings.