ATI RN

1. Dr. Fox studies the causes of depression. In other words, she looks at factors that play a role in the ________ of depression.

• A. etiology
• B. epidemiology
• C. prevalence
• D. resiliency

Correct Answer: A

Rationale: The correct answer is A, 'etiology.' Etiology specifically deals with the causes or origins of diseases like depression. Choice B, 'epidemiology,' focuses on the patterns, causes, and effects of health and disease conditions in defined populations. Choice C, 'prevalence,' refers to the proportion of a population found to have a condition. Choice D, 'resiliency,' relates to the ability to recover from or adjust to challenges.

2. While having a gene for Parkinson's disease guarantees that Parkinson's disease will develop, this is not the only factor that can lead to Parkinson's disease. In other words, the presence of the gene is a ________, but not a ________.

• A. risk factor; sufficient cause
• B. sufficient cause; necessary cause
• C. necessary cause; risk factor
• D. contributory cause; sufficient cause

Correct Answer: B

Rationale: The correct answer is B: 'sufficient cause; necessary cause.' A sufficient cause will inevitably produce the disorder, but it is not the only factor. In this case, having the gene for Parkinson's disease is a sufficient cause, meaning it alone can lead to the development of the disease. However, it is not a necessary cause because Parkinson's disease can still develop without the presence of this gene. Choices A, C, and D are incorrect because they do not accurately describe the relationship between the gene and the development of Parkinson's disease as depicted in the question.

3. 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.

4. Cortisol is a hormone that ________

• A. is released by the hypothalamus and travels to the pituitary gland, causing it to respond.
• B. the pituitary gland releases to stimulate the adrenal gland.
• C. the adrenal gland produces that mobilizes the body to deal with stress.
• D. reduces the reuptake of the monoamine neurotransmitters.

Correct Answer: C

Rationale: The correct answer is C. Cortisol is a hormone produced by the adrenal gland that mobilizes the body to deal with stress. It helps regulate metabolism, reduce inflammation, and assist in memory formulation. Choice A is incorrect as cortisol is not released by the hypothalamus and does not travel to the pituitary gland. Choice B is incorrect as cortisol is not released by the pituitary gland but acts on it to regulate hormone production. Choice D is incorrect as cortisol does not reduce the reuptake of monoamine neurotransmitters.

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 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 extra copy of chromosome 21, also known as trisomy 21, leads to the characteristic features and health problems associated with Down syndrome.