ATI RN
Exam 4 Psychology 101
1. In an experiment, the investigators manipulate variables to learn how one affects another.?
- A. A data-collection method in which participants respond to questions
- B. The entire group that is of interest to a researcher
- C. A detailed description of a single culture or context
- D. A study that tests a causal hypothesis
Correct answer: D
Rationale: The correct answer is D because in an experimental design, investigators manipulate variables to determine the effect of one on another. This process allows researchers to test causal hypotheses by manipulating one variable while keeping others constant. Choices A, B, and C are incorrect as they do not directly relate to manipulating variables in an experiment.
2. Which disorder is characterized by a pattern of behavior that involves culturally inappropriate, overly familiar behavior with relative strangers?
- A. Schizoid personality disorder
- B. Autism spectrum disorder
- C. Reactive attachment disorder
- D. Disinhibited social engagement disorder
Correct answer: D
Rationale: Disinhibited social engagement disorder is the correct answer because it is characterized by a pattern of behavior involving culturally inappropriate and overly familiar behavior with relative strangers. This disorder is marked by a lack of social boundaries and caution when interacting with unfamiliar individuals. Schizoid personality disorder (Choice A) is characterized by a lack of interest in social relationships, Autism spectrum disorder (Choice B) involves challenges with social interactions and communication, and Reactive attachment disorder (Choice C) is typically associated with difficulty forming emotional bonds with caregivers, not with overly familiar behavior with strangers.
3. Genes ________
- A. determine how a person will behave.
- B. cause people to develop mental disorders.
- C. determine what characteristics a person will have.
- D. determine the range of characteristics a person has.
Correct answer: D
Rationale: Genes determine the range of characteristics a person has. Choice A is incorrect because genes do not solely determine behavior, as behavior is influenced by a combination of genetic and environmental factors. Choice B is incorrect because while genes can contribute to the risk of developing mental disorders, they do not directly cause them. Choice C is incorrect as genes contribute to but do not solely determine all characteristics a person will have.
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: Cortisol is a hormone produced by the adrenal gland that mobilizes the body to deal with stress. Therefore, choice C is the correct answer. Choices A and B are incorrect as they inaccurately describe the origin and function of cortisol. Choice D is also incorrect as it describes the action of a different type of substance, not cortisol.
5. Where is the site of chemical communication in the brain?
- A. Neuron
- B. Synapse
- C. Axon
- D. Dendrite
Correct answer: B
Rationale: The correct answer is B: Synapse. The synapse is the site where chemical communication occurs between neurons. Neurotransmitters are released from the axon terminal of one neuron, cross the synaptic cleft, and bind to receptors on the dendrites of the next neuron. Choice A, Neuron, is incorrect as it refers to the entire nerve cell. Choices C and D, Axon and Dendrite, are also incorrect as they are specific parts of a neuron and not the primary site of chemical communication.
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