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Down syndrome is caused by ________.
- A. a chemical imbalance.
- B. a gene on the X chromosome.
- C. possessing an extra X chromosome.
- D. possessing an extra chromosome in chromosome 21.
Correct Answer: D
Rationale: Down syndrome is caused by possessing an extra chromosome in chromosome 21, not by a chemical imbalance (choice A), a gene on the X chromosome (choice B), or possessing an extra X chromosome (choice C). The presence of an additional chromosome 21 disrupts the normal course of development and leads to the characteristics associated with Down syndrome.
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In psychoanalytic theory, which psychosexual stage centers on castration anxiety?
- A. Genital
- B. Oral
- C. Anal
- D. Phallic
Correct Answer: D
Rationale: Castration anxiety is a concept specific to the Phallic stage in psychoanalytic theory, according to Sigmund Freud. During the Phallic stage, children experience the Oedipus complex (boys) and Electra complex (girls), where they develop unconscious desires for the opposite-sex parent and fear castration by the same-sex parent. This anxiety is a crucial aspect of the Phallic stage, making it the correct answer. The other stages (Genital, Oral, and Anal) do not directly involve castration anxiety and focus on different aspects of psychosexual development.
Why is it difficult to determine the nature of the relationship between divorce and the psychological functioning of family members?
- A. Cause and effect cannot be determined as preexisting behavioral abnormalities in either the parents or the children may make divorce more likely.
- B. The findings have been too inconsistent to draw any conclusions.
- C. While the effects of divorce are negative on children, the effects on the spouses are generally positive.
- D. Due to modern acceptance of divorce, there has been an ongoing decrease in the negative effects of divorce.
Correct Answer: A
Rationale: The correct answer is A because it highlights a crucial factor that makes it challenging to establish a clear cause and effect relationship between divorce and the psychological functioning of family members. Preexisting behavioral abnormalities in either the parents or the children may influence both the likelihood of divorce and the psychological functioning of family members. Choice B is incorrect as it generalizes the findings without specifying the key issue of preexisting conditions. Choice C is incorrect as it oversimplifies the effects of divorce on family members. Choice D is incorrect as it presents a broad statement without addressing the complexities involved in determining the effects of divorce.
Freud's psychosexual stage that occurs between the ages of 3 and 5 and includes the Oedipal period is the _________ stage.
- A. Oral
- B. Anal
- C. Phallic
- D. Genital
Correct Answer: C
Rationale: The correct answer is C: Phallic. Freud's psychosexual stage that occurs between ages 3 and 5 and includes the Oedipal period is the phallic stage. This stage is characterized by the Oedipus complex for boys and the Electra complex for girls. Choices A, B, and D are incorrect because the oral stage typically occurs during the first year of life, the anal stage occurs around ages 2 to 3, and the genital stage is the final stage in Freud's theory of psychosexual development.
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.
How do socioeconomic factors affect mental health?
- A. Socioeconomic factors do not affect mental health.
- B. Socioeconomic factors are one of the primary determinants of mental health.
- C. Socioeconomic factors only affect mental health in extreme cases.
- D. Socioeconomic factors have no clear impact on mental health.
Correct Answer: B
Rationale: The correct answer is B. Socioeconomic factors like income and education levels are key determinants of mental health. They influence access to resources such as healthcare, housing, and social support systems, which can impact an individual's mental well-being. Additionally, socioeconomic factors can contribute to stress levels and overall quality of life, which in turn affect mental health. Choice A is incorrect because socioeconomic factors do play a significant role in mental health outcomes. Choice C is incorrect as socioeconomic factors have a broad impact on mental health beyond extreme cases. Choice D is also incorrect as numerous studies have shown the clear impact of socioeconomic factors on mental health.