Match each research method with its corresponding example. drag each item on the left to its matching item on the right. observationcorrelational studyself-report surveyexperimenta social psychologist spends the afternoon at the mall and unobtrusively records how teenagers act in groups. a health psychologist randomly assigns people to meditate in the morning, at night, or not at all. after eight weeks, people rate their overall moods. a cognitive psychologist sends out a questionnaire to all incoming students to determine their computer skills. a positive psychologist measures the relationship between spirituality and happiness.