Yongmei is studying for her math test. her boyfriend marcus asks if she can go to the movies with him. she would love to go, but she knows she has to study for the math test in order to pass the class. according to freud, which part of yongmei's personality will say, "you must stay home and study because passing the class is necessary for you to graduate."

After 20 minutes of waiting outside the baggage claim area for your friend to pick you up, you decide to go inside the airport terminal and phone her. standing a short distance from you is a kind-looking older woman. "would you mind watching my luggage so i can go make a quick phone call? " you ask politely. "i'd be happy to watch it for you," she replies, "my ride is not coming for another half-hour." when you return less than five minutes later, the old lady and your luggage (including your laptop) are gone. this example illustrates one of the problems associated with: ethnocentrism. the "feel good, do good" effect.the rule of reciprocity. an implicit personality theory.