Nursing Elites

1. Which of the following is not a common method for studying genetic influences?

• A. The study of specific gene defects
• B. Twin studies
• C. Adoption studies
• D. Family history (pedigree) studies

Correct answer: A

Rationale: The correct answer is A. Studying specific gene defects is not a common method for investigating genetic influences. Choices B, C, and D are common methods used in genetic research. Twin studies help determine the heritability of traits, adoption studies compare similarities between adopted individuals and their adoptive families versus biological families, and family history studies track the inheritance patterns of traits within families.

2. A psychological disorder is said to have an acute onset if the symptoms develop ______, while it has an insidious onset if the symptoms develop ______.

• A. Suddenly;gradually
• B. Suddenly;atypically
• C. Gradually;atypically
• D. Atypically;suddenly

Correct answer: A

Rationale: An acute onset refers to the sudden development of symptoms, whereas an insidious onset indicates a gradual progression of symptoms. Therefore, the correct answer is 'Suddenly;gradually.' The other choices are incorrect because 'atypically' does not accurately describe the onset of symptoms in this context.

3. One important contribution of Freud's theory was that ________.

• A. he truly understood the role of women in society.
• B. he heavily utilized experimental evidence to support his theories.
• C. he applied the same principles to normal and abnormal behavior.
• D. he increased the focus on positive growth for individuals.

Correct answer: C

Rationale: Freud's important contribution was that he applied the same principles to both normal and abnormal behavior. This approach allowed for a comprehensive understanding of human behavior without creating a rigid distinction between normal and abnormal psychology. Choice A is incorrect because Freud's theory did not primarily focus on the role of women in society. Choice B is incorrect as Freud's theories were largely based on clinical observations and case studies rather than experimental evidence. Choice D is incorrect as Freud's theory emphasized the unconscious mind and conflicts rather than solely focusing on positive growth for individuals.

4. 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.

5. 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.

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