Which of the following statements about brain dysfunction and psychiatric disorders is correct?
- A. Identifiable brain damage is often the cause of psychiatric disorders.
- B. Brain damage may decrease the risk of developing a psychiatric condition.
- C. Changes in brain function appear to play a role in many psychiatric disorders.
- D. Brain development can be altered by experience, always leading to changes in the brain that decrease the risk of developing a psychiatric condition.
Correct Answer: C
Rationale: The correct statement is C: 'Changes in brain function appear to play a role in many psychiatric disorders.' This statement is accurate as research suggests that alterations in brain function are associated with various psychiatric disorders. Option A is incorrect because while brain damage can contribute to some psychiatric conditions, it is not always the primary cause. Option B is incorrect as brain damage typically increases the risk of developing psychiatric disorders. Option D is incorrect because while brain development can be influenced by experiences, it does not always decrease the risk of psychiatric conditions.
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How does the diathesis-stress model explain the onset of mental disorders?
- A. Stress alone is sufficient to cause mental disorders.
- B. Both genetic vulnerability and environmental stress are needed to trigger a disorder.
- C. Only genetic factors cause mental disorders.
- D. Environmental stressors alone can cause mental disorders.
Correct Answer: B
Rationale: The diathesis-stress model explains that the onset of mental disorders results from the interaction of genetic vulnerability (diathesis) and environmental stress. Choice A is incorrect because stress alone is not sufficient, according to the model. Choice C is incorrect as it oversimplifies by attributing mental disorders solely to genetic factors. Choice D is incorrect because the model emphasizes the joint contribution of genetic predisposition and environmental stress.
Why does the selection of a theoretical perspective of mental disorders matter?
- A. Because it determines how data is interpreted, and influences treatment approaches.
- B. It matters because different perspectives offer different insights into the causes and treatments of mental disorders.
- C. The selection of a theoretical perspective is not important as all perspectives lead to the same treatment outcomes.
- D. Theoretical perspectives are only relevant for academic research, not for clinical practice.
Correct Answer: A
Rationale: The selection of a theoretical perspective matters because it determines how data is interpreted and influences the treatment approaches that are considered appropriate. Choice B is incorrect because different perspectives may lead to different interpretations and treatment strategies. Choice C is incorrect because different theoretical perspectives can result in varied treatment outcomes. Choice D is incorrect because theoretical perspectives play a crucial role in both academic research and clinical practice.
A lack of social skills, poor school performance, and moodiness have all been associated with which of the following parenting styles?
- A. Authoritarian
- B. Permissive/indulgent
- C. Authoritative
- D. Neglectful/uninvolved
Correct Answer: D
Rationale: The correct answer is D, Neglectful/uninvolved. This parenting style is associated with a lack of social skills, poor school performance, and moodiness due to the lack of parental involvement and emotional support. Authoritarian parenting (choice A) is characterized by strict rules and high demands, not necessarily linked to these issues. Permissive/indulgent parenting (choice B) involves few rules and high responsiveness, which may not directly lead to these problems. Authoritative parenting (choice C) combines high demands with emotional support and is actually linked to positive outcomes such as good school performance and social skills.
Why is it particularly useful to study identical twins who were raised in different environments?
- A. Differences in brain function can be easily identified.
- B. Concordance rates tend to be higher.
- C. It is possible that the genetics of twins who have been separated have changed in ways to explain any differences found.
- D. It is possible that high concordance rates between identical twins reared together are due to their being treated more similarly than nonidentical twins.
Correct Answer: D
Rationale: Studying identical twins raised in different environments allows researchers to understand the impact of genetics versus environmental factors on traits. Choice A is incorrect because differences in brain function can be influenced by a variety of factors and not solely by environmental differences. Choice B is incorrect as concordance rates tend to be higher in identical twins reared together due to shared genetics and environment. Choice C is incorrect because genetics do not change due to being raised in different environments.
The process of ________ is used to increase the probability that a behavior will occur.
- A. operant conditioning
- B. reinforcement
- C. classical conditioning
- D. punishment
Correct Answer: B
Rationale: The correct answer is reinforcement. Reinforcement involves providing a consequence that increases the likelihood of a behavior being repeated. Operant conditioning (Choice A) refers to learning through consequences for behavior, which includes reinforcement and punishment. Classical conditioning (Choice C) involves forming associations between stimuli and involuntary responses. Punishment (Choice D) involves providing a consequence that decreases the likelihood of a behavior being repeated. In this context, the question specifically asks about a process that increases the probability of a behavior occurring, aligning with the concept of reinforcement.