ATI RN
Exam 4 Psychology
1. According to the diathesis-stress model, having a predisposition towards mental illness...
- A. Means that a person will surely develop a mental disorder in the future
- B. Does not affect the chances of developing a mental disorder
- C. Increases the chance that a person would have a mental disorder
- D. None of the above
Correct answer: C
Rationale: According to the diathesis-stress model, having a predisposition towards mental illness increases the risk but does not guarantee the development of a mental disorder. Choice A is incorrect as the model does not imply certainty. Choice B is incorrect as having a predisposition does affect the chances. Choice D is incorrect as the model does have an impact on the likelihood of developing a mental disorder.
2. A psychologist who studied the relationship between sociocultural factors and mental disorders would be most likely to study ________.
- A. parenting style and self-schemas.
- B. poverty and racial discrimination.
- C. peer rejection and attributional style.
- D. assimilation and accommodation.
Correct answer: B
Rationale: A psychologist who studies the relationship between sociocultural factors and mental disorders would focus on factors like poverty and racial discrimination. These factors have a significant impact on mental health outcomes within different populations. Choices A, C, and D are less directly related to sociocultural factors like poverty and racial discrimination and their influence on mental disorders, making them incorrect.
3. In order to develop chicken pox, one must be exposed to the virus that causes chicken pox. Note, however, that not everyone who is exposed to the virus is affected. In other words, the virus is a ________
- A. risk factor.
- B. necessary cause.
- C. sufficient cause.
- D. contributory cause.
Correct answer: B
Rationale: The correct answer is B: 'necessary cause.' A necessary cause must be present for a disorder to occur. In the context of developing chicken pox, being exposed to the virus is a necessary condition for contracting the disease. Choices A, C, and D are incorrect. A 'risk factor' increases the probability of developing a disease but is not essential for its occurrence. A 'sufficient cause' can produce the outcome on its own, which is not the case with exposure to the chicken pox virus. A 'contributory cause' adds to other causes to produce an effect, but in this scenario, exposure to the virus is crucial by itself.
4. Normal human cells have ________
- A. twenty-two chromosome pairs and one pair of sex chromosomes.
- B. twenty-one trisomy chromosome pairs, one autosomal pair, and one pair of sex chromosomes.
- C. twenty-one chromosome pairs and two trisomy chromosome pairs.
- D. twenty-three chromosome pairs.
Correct answer: A
Rationale: Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This is the correct answer as it accurately describes the typical chromosome count in human cells. Choice B is incorrect because it mentions 'twenty-one trisomy chromosome pairs,' which is not characteristic of normal cells. Choice C is incorrect as it suggests having 'two trisomy chromosome pairs,' which is abnormal. Choice D is incorrect as it states 'twenty-three chromosome pairs,' which is not the standard count in normal human cells.
5. 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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