Nursing Elites

1. What are some common methods used to study genetic influences on behavior?

• A. Genetic influences are studied only through twin studies.
• B. Common methods include twin studies, adoption studies, and gene mapping.
• C. Genetic influences on behavior are only studied through family history.
• D. Genetic influences on behavior are not well understood.

Correct answer: B

Rationale: Common methods used to study genetic influences on behavior include twin studies, adoption studies, and gene mapping. Twin studies help to compare the similarities between identical and fraternal twins to estimate the heritability of a trait. Adoption studies look at the similarities between adopted children and their biological and adoptive parents to determine genetic influences. Gene mapping involves identifying specific genes associated with certain behaviors. Choices A, C, and D are incorrect because genetic influences on behavior are not solely studied through twin studies or family history, and while the understanding of genetic influences may vary, there are established methods to study them.

2. What does the genetic study of identical twins reared apart help to clarify?

• A. Differences in brain function
• B. Genetic influence on behavior
• C. Interaction between genetics and environment
• D. The role of environmental factors alone

Correct answer: C

Rationale: The correct answer is C: 'Interaction between genetics and environment.' The genetic study of identical twins reared apart helps in understanding how both genetics and environment play a role in shaping an individual's traits and behaviors. This type of study allows researchers to tease apart the effects of genetic inheritance from those of environmental influences. Choices A, B, and D are incorrect because the study of identical twins reared apart specifically focuses on the interplay between genetics and environment, rather than solely on differences in brain function, genetic influence on behavior, or the role of environmental factors alone.

3. When the parent returned in the strange situation experiment, babies with ____ attachment tend to remain upset for long periods of time, kicking, screaming, refusing to be distracted with toys, and sometimes arching back and away from contact?

• A. Secure
• B. Avoidant
• C. Ambivalent
• D. Disorganized

Correct answer: C

Rationale: In the strange situation experiment, babies with ambivalent attachment display distress and have difficulty calming down when a parent returns. They may kick, scream, refuse toys, and show signs of physical discomfort or resistance. This behavior is characteristic of ambivalent attachment, where the infant shows mixed emotions and finds it hard to be soothed by the returning parent. Secure attachment (Choice A) refers to babies who seek comfort from the parent but can be soothed upon return. Avoidant attachment (Choice B) involves babies showing little emotion upon reunion with the parent. Disorganized attachment (Choice D) displays inconsistent or confused behaviors in the strange situation experiment.

4. Michael, age 16, has recently gained a considerable amount of weight but has not grown any taller. His father experienced a similar pattern of growth when he was a teenager. Theorists who suggest that Michael’s growth pattern was inherited from his father emphasize the ________ side of the nature-nurture debate?

• A. Nature
• B. Nurture
• C. Environmental
• D. Experiential

Correct answer: A

Rationale: The correct answer is 'A: Nature.' In this scenario, the emphasis is on the genetic inheritance of the growth pattern from father to son, highlighting the role of nature in determining physical characteristics. Choice B, 'Nurture,' focuses on environmental influences, which are not the primary factor in this case. Choice C, 'Environmental,' is similar to 'Nurture' and does not address the genetic aspect mentioned. Choice D, 'Experiential,' pertains more to the learning and experiential aspects rather than genetic inheritance, making it an incorrect choice.

5. What is extinction, and how might it be used in treating a disorder?

• A. Extinction strengthens the conditioned response by continuously pairing the conditioned stimulus with the unconditioned stimulus.
• B. Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus.
• C. Extinction is ineffective and is not used in treating disorders.
• D. Extinction is the process of intensifying the conditioned response by pairing the conditioned stimulus with a stronger unconditioned stimulus.

Correct answer: B

Rationale: Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus. This process helps in reducing or eliminating undesired behaviors or responses. Choice A is incorrect because extinction weakens the conditioned response by breaking the association between the conditioned stimulus and the unconditioned stimulus. Choice C is incorrect as extinction is a widely used technique in behavioral therapies for treating disorders. Choice D is incorrect as extinction aims to reduce the conditioned response, not intensify it.

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