I will select about 6 of the following 12 questions to comprise the “shortessay” part of Exam 3. Key points to include to earn full marks are listed below each answer. CHAPTER 7 1. Why would a dog salivate when it sees a light bulb or hears a buzzer, even though it can’t eat these things? (p. 224-226) [4 marks] Key points: this is a classic case of classical conditioning classical conditioning is a 3-step process: 1. an unconditioned stimulus (US) elicits a unconditioned response (UR); this is a unlearned relation that occurs automatically 2. a neutral stimulus (NS) is paired with the US 3. because of #2, the NS becomes a conditioned stimulus (CS) that elicits a conditioned response (CR) in this example: 1. US (food) elicits UR (salivation) 2. NS (light bulb) is paired with US (food) 3. CS (light bulb) elicits CR (salivation) 12. Why do efforts to “crack down” on wrongdoers often go awry? Using the example of parents severely reprimanding their child for drawing on walls, describe four problems with punishment. (pp. 245-247 & Class Notes) [6 marks] Key points: A (mom): B (draw on walls) C (severe reprimand) [provide at least 4 of the points below] 1. the aversive stimuli used to punish may also evoke anxiety, fear, rage, escape E.g. the severe reprimand is an unconditional stimulus (US) that elicits the unconditional response (UR) of fear 2. stimuli paired with the aversive stimulus used to punish can come to evoke anxiety, fear, rage, & escape through classical conditioning E.g., because the mother is reliably paired with the severe reprimand (US) she becomes a conditioned stimulus (CS) that elicits the conditioned response (CR) of fear 3. stimulus control—the behavior may decrease due to its punishing consequence but only when there is a cue for punishment E.g., when mom is home, drawing on the walls produces a severe reprimand; so, drawing on the walls stops when mom is home; but, drawing on the walls continues when mom is not home 4. failure to consider factors influencing its effectiveness E.g., punishment is most effective when applied immediately after the undesirable behavior o in the “Wait until your father gets home!” scenario, a delayed severe reprimand delivered by the father will have an effect on the behavior that immediately precedes it (e.g., approaching the father) but little effect on the misdeed committed earlier in the day 5. punishment conveys little information—punishment does not establish new behavior; it only suppresses old behavior E.g., if the parents don’t specify and reinforce a desired behavior (e.g., drawing on paper) as an alternative to drawing on the walls, even if the misdeed stops it may be replaced by an equally undesirable behavior (e.g., teasing little brother) 6. failure to consider effect on behavior E.g., the parents’ reprimand may be done out of anger with little attention paid to whether or not it actually decreases behavior; it may not 7. punishment can become addictive E.g., it doesn’t require much effort (“Stop that!”) and typically results in an immediate short-term gain (drawing on walls stops right away) 8. failure to consider what’s causing the undesirable behavior—a proper analysis will likely reveal a reinforcing consequence for it E.g., the reactions of the boy’s big sister may reinforce drawing on walls; the parents may be able to avoid punishment altogether by arranging for his sister not to react in this way (extinction) 10. What is the best way to discourage a friend from interrupting you while you’re studying? (p. 241) [6 marks] Key points: first, we assume our friend’s behavior of interrupting us is being reinforced in reinforcement: 1. a behavior (B) produces a consequence (C) 2. B becomes more likely because it produced C in our example: 1. B (interrupt) produces C (conversation) 2. B (interrupt) becomes more likely because it produced C (conversation) if our assumption is correct, then we can discourage him by not engaging him in conversation when he interrupts us technically, this procedure is called extinction, and it is defined as the discontinuation of a reinforcing consequence for a behavior in our example: 1. B (interrupt) no longer produces C (conversation) 2. B (interrupt) will become less likely but we must make sure that we never to give in when he interrupts us and engage him in conversation if we do, then his behavior will be intermittently reinforced (i.e., reinforced sometimes) this would make it even more difficult to discourage him, as increasing the intermittency of reinforcement increases the resistance of the behavior to extinction 17. Does watching violence of TV make people more aggressive? (pp. 253-254) [5 marks] Key points: Evidence for: meta-analyses show that the greater the exposure to violence in movies and on TV, the stronger the likelihood of a person behaving aggressively, even after controlling for social class, intelligence, and other factors o correlation between media violence and aggression is high, only superceded by the correlation between smoking and lung cancer when grade-school children cut back on their time watching TV or playing video games, which are often violent in nature, their aggressiveness declines Critics: [provide at least two point below] children watch many nonviolent shows and have many other influences for every violent teenager there are dozens more who regard the game as just fun and go off and do their homework although the number of violent video games increased throughout the 1990s, overall rates of teenage violence actually declined cause-effect may work in opposite direction: habitually aggressive people are drawn to violent shows troubled persons may find justification for acts based upon anything they see (e.g., Ten Commandments) Conclusion both sides are right o does have an influence and influence is neither strong nor universal CHAPTER 9 11. Why will a terrible hazing make you more loyal to the group that hazed you? (p. 319) [4 marks] Key points: we appeal to the notion of cognitive dissonance: o state of tension that occurs when a person simultaneously holds two cognitions that are psychologically inconsistent, or when a person’s belief is inconsistent with his or her behavior o this leads to an effort to reduce dissonance the example entails a common form of dissonance reduction called justification of effort o the tendency for individuals to increase their liking for something they have worked hard or suffered to attain the person’s thought “I went through a lot of awful stuff to join this group..” is dissonant with the cognition “…only to find I hate this group” to reduce the tension, person must decide that the hazing was not so bad or that they really like the group 8. Why do people worry about dying in an airplane crash but ignore dangers that are far more likely? (p. 314) [3 marks] we appeal to the notion of the availability heuristic: o the tendency to judge the probability of a type of event by how easy it is to think of examples or instances catastrophes and shocking accidents (e.g., airplane crashes) stand out in our minds and are therefore more “available” mentally than are other kinds of mental events the danger with the availability heuristic is that people irrationally ignore dangers that are less “available” mentally, such as death from cigarette smoking or a rise in skin cancer rates due to depletion of the earth’s ozone layer 15. Why do some psychologists defend traditional intelligence testing and other oppose it? (p. 327) [5 marks] Key points: Advocates tests predict school performance fairly well tests identify the mentally retarded and gifted students who had not previously considered higher education when tests reveal group differences, the solution is to give special help to children who need it so they can do better—Binet’s original goal Critics standardized tests tell us nothing about how a person goes about answering questions and solving problems doesn’t explain why people with low scores on IQ tests often behave intelligently in real life o E.g., making smart consumer choices, winning at the racetrack, making wise personal choices 18. Why do Asian children perform so much better in school than North American students do? (pp. 332-333) [6 marks] Key points: 1. beliefs about intelligence (Figure 9.5) Asian parents, teachers, and children are far more likely than North Americans to believe that mathematical ability results from studying North Americans believe it is innate: “If you have it you don’t have to work hard; and if you don’t have it there’s no point in trying” [bonus mark if you remember these statistics]: o over 90% of Japanese schoolteachers say studying hard is most important for math performance compared to about 25% of North American teacher o over 70% of Japanese students say studying hard is most important for math performance compared to under 30% of North American students 2. standards North American parents have far lower standards for their children’s performance—satisfied with scores barely above average Chinese and Japanese parents are happy only with very high scores 3. values North American students do not value education as much as Asian students and are more complacent about mediocre work when asked what they would wish for if a wizard could give them anything they wanted, more than 60% of Chinese 5th graders named something related to their education; most North American students wanted money or possessions CHAPTER 10 1. What’s wrong with thinking of memory as a mental movie camera? (pp. 346347) [4 marks] Key points: Memory is selective not everything that happens to us or impinges on our senses in tucked away for later use o E.g., the color of the shirt of the person sitting next to you in class yesterday Memory is a reconstructive process it is like watching a few unconnected frames and then figuring out what the rest of the scene must have been like draws on many sources o E.g., information from family stories, photographs, home videos, accounts of other people’s birthdays when people were asked to read lengthy, unfamiliar stories from other cultures and then retell the stories, they often eliminated or changed details that did not make sense to them, and added details to make the story more coherent, sometimes even adding a moral 2. Why do “flashbulb” memories of surprising or shocking events sometimes have less wattage than we think? (p. 347) [3 marks] Key points: research suggests that flashbulb memories are not always accurate o people usually remember the gist of the event Example 1986 explosion of the space shuttle Challenger on the morning after the tragedy university students reported how they had heard the news 3 years later, when they again recalled how they had learned of the incident, not one student was entirely correct and 1/3 of them were completely wrong, although they felt confident that they were remembering accurately thus, even flashbulb memories are subject to distortions remembering is an active process that involves not only dredging up sorted information but also putting two and two together to reconstruct the past 5. Can children’s testimony about sexual abuse always be trustworthy? (pp. 350353) [6 marks] Key points: preschoolers’ memories are more vulnerable to suggestive questions than are those of school-age children and adults they’re more likely to experience source amnesia they’re more likely to be influenced by emotionally charged situation Garven et al. (1998) (Figure 10.2) young man visited children at preschool, read them a story, and handed out treats week later, children were questioned about man’s visit in both groups, children were asked leading questions: “Did he shove the teacher?”; Did he throw a crayon at the student who was talking?” in second group, employed techniques that interrogators use: telling children what “other kids” had supposedly said; expressing disappointment if the answers were negative, and praising children for making allegations 1st group: said yes to about 15% of false accusations 2nd group: 3-year old said yes to over 80% of false accusations; 4-6 year olds to about 50% [you needn’t state the exact statistics but you should be able to state the general result] interview in study lasted only 5-10 minutes; in actual investigations interviewers often questions children repeatedly over many weeks 20. Why are many researchers skeptical about claims of “repressed” and “recovered” memories? (pp. 374-375) [5 marks] Key points: Repression in psychoanalytic theory, the selective, involuntary pushing of threatening or upsetting information into the unconscious o an explanation for psychogenic amnesia Other explanations [provide at least two points below] people may intentionally avoid unpleasant memories by distracting themselves with pleasant memories people avoid retrieval cues having to do with unhappy memories thus, people don’t rehearse unhappy memories, and so they fade Critics [provide at least two points below] therapists are naively unaware of the power of suggestion and the dangers of confabulation repeated experiences of trauma are more likely to be remembered than forgotten, even when the victims wish they could forget only rarely have “recovered” memories been corroborated by objective evidence term is vague and ill-defined