Nursing Elites

1. Low-level radiation, resulting from industrial leakage or medical X-rays, __________.

• A. is harmful only when combined with other teratogens
• B. can increase the risk of childhood cancer
• C. rarely causes lasting damage
• D. is safe during the last trimester

Correct answer: B

Rationale: Low-level radiation, whether from industrial leakage or medical X-rays, can increase the risk of childhood cancer by potentially damaging the developing fetus's cells. Even though the risk is relatively low, it is still a significant concern that should be acknowledged and monitored closely, especially during prenatal development. Choice A is incorrect as low-level radiation can still be harmful on its own without the need to be combined with other teratogens. Choice C is incorrect because low-level radiation exposure can indeed cause lasting damage, especially in the context of childhood cancer risk. Choice D is incorrect because low-level radiation exposure, even during the last trimester, can pose risks to the developing fetus and is not considered entirely safe.

2. What is a characteristic of structured interviews?

• A. Do not yield the same depth of information as a clinical interview
• B. Are flexible because questions are phrased differently for each participant
• C. Bring together a wide range of information on one person
• D. Tell researchers little about the reasoning behind participants' responses

Correct answer: A

Rationale: The correct answer is A. Structured interviews do not yield the same depth of information as a clinical interview because they involve a set of standardized questions that are asked in the same way to all participants. This lack of flexibility may limit the depth and richness of the responses obtained compared to a more open-ended clinical interview. Choices B, C, and D are incorrect because structured interviews are not flexible in question phrasing, do not necessarily bring together a wide range of information on one person, and can provide insights into participants' reasoning behind responses depending on the design of the structured questions.

3. By using which method of assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups?

• A. sequential
• B. random
• C. systematic
• D. correlational

Correct answer: B

Rationale: By using random assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups. Random assignment helps reduce the likelihood of bias in the selection process and ensures that any differences between groups are due to the treatment and not pre-existing group differences. Sequential, systematic, and correlational assignment methods do not provide the same level of assurance in distributing participants' characteristics equally across treatment groups.

4. What is one limitation of the ethnographic method?

• A. Investigators' cultural values sometimes lead them to misinterpret what they see.
• B. It provides little information on how children and adults actually behave.
• C. It relies on unobtrusive techniques, such as surveillance cameras and one-way mirrors.
• D. It provides little information about the reasoning behind participants' responses.

Correct answer: A

Rationale: The limitation of the ethnographic method is that investigators' cultural values sometimes lead them to misinterpret what they see. This can introduce bias into the observations and potentially impact the accuracy of the findings. It is important for researchers to be aware of their own biases and strive to minimize their influence when conducting ethnographic studies. Choice B is incorrect because ethnographic methods actually aim to provide rich information on how individuals behave within their cultural contexts. Choice C is incorrect as ethnographic methods typically involve direct observation and participation rather than unobtrusive techniques like surveillance cameras. Choice D is incorrect because one of the strengths of ethnographic research is its ability to uncover the reasoning behind participants' responses by immersing the researcher in the cultural setting.

5. Observations of imprinting led to which major concept in human development?

• A. adaptation
• B. equilibrium
• C. the critical period
• D. classical conditioning

Correct answer: C

Rationale: Observations of imprinting in animals, such as ducklings following the first moving object they see after hatching, led to the major concept of the critical period in human development. The critical period is a specific time frame during which an organism must experience certain stimuli to develop properly. This concept has been influential in understanding various aspects of human development, such as language acquisition and social attachment. Choices A, B, and D are incorrect. Adaptation refers to adjusting to the environment, equilibrium is about balance in cognitive processes, and classical conditioning is a learning process associated with behaviorism, none of which directly relate to the concept derived from imprinting observations.

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