Descriptive questions examples: • Correlation between: shirt color, dorm, major, fun, shower, time-studying, etc. • Q: Is it very important? 100 Fun Course 6 Course 15 75 50 25 0 D C B Grade A Descriptive questions: problems I • Self selection • Are we only studying the admission policy of • Possibilities: • Look at comparisons • Look at changes 100 MIT? 75 Fun 50 25 After Gym Before Gym 0 D C B Grade A Self selection • Reminder • When people pick their dorm, whether to go to the gym, if to go on a date, to drink, to have fun, to..... to...... to ..... > We invite self-selection problems Descriptive questions - Summary • Many questions cannot be adequately answered with this approach. • Balance between completeness & importance • How do people chose a major? Do students at MIT cheat? Is eBay cheaper? Do students like online dating? How inferior is harvard? Question design • We had a whole session on this ..... • Go over your notes! • Demand effects, order effects, inferences, social desirability, scale effects, etc. Other ideas I • When do people stop working? • Telling lies (TL) • How good are people at TL? • How good do people think they are in TL? • How do people treat “Active” vs.“passive lies? Other ideas II • Placebo • Coffee • Alchohol • Interviewing (ﬁrst impressions) • How good are people? • How good do people think they are? Other ideas III • Multi-tasking • e-mail • Reading on computer vs. paper • Attention, memory , comprehension Other ideas IV • How do decisions change under emotional states • dancing, gym, food, hunger etc • Decisions about XXX, partners, job, etc. Other ideas V • Creativity • What improves creativity? • Does engineering training decreases creativity? • Does yoga increase creativity? • Does time pressure decreases creativity? Other ideas VI • Effects of X on gym activity • X = Music, distraction, games, attractiveness of people around, how one counts, breaks, with friends? What next? • Think of some ideas (many) • Be critical (but pleasant) within your group • Come and talk to us...