Nursing Elites

1. Dr. McBride wants to know if the teacher's use of encouragement in the classroom affects the children's self-esteem. To assign children to treatment conditions, Dr. McBride should __________.

• A. carefully distribute the children according to their test scores
• B. divide the children so each group has an equal number of boys and girls
• C. draw the children's names out of a hat
• D. assign the quieter children to the same treatment condition

Correct answer: C

Rationale: Drawing the children's names out of a hat is a way to randomly assign them to treatment conditions. Random assignment helps to ensure that any differences in self-esteem that may be observed in the study are not due to pre-existing characteristics of the children. This method helps to establish a cause-and-effect relationship between the teacher's use of encouragement and the children's self-esteem. Choice A is incorrect because assigning children based on test scores may introduce bias into the study. Choice B is incorrect as balancing gender is not relevant to the research question. Choice D is incorrect as it introduces a bias by selecting a specific group of children based on a characteristic unrelated to the study objective.

2. Which statement about the harm done by teratogens is true?

• A. Passive smoking can be harmful to the developing fetus.
• B. The genetic makeup of the mother and the developing organism plays an important role.
• C. The negative impact of teratogens is usually reversible.
• D. The most serious defects occur in the germinal period.

Correct answer: B

Rationale: The statement that the genetic makeup of the mother and the developing organism plays an important role in the harm done by teratogens is true. Genetic factors can influence susceptibility to teratogens, and the interaction between genetic and environmental factors plays a significant role in determining the impact on the developing fetus. This highlights the importance of considering both genetic and environmental influences when assessing risks to prenatal development. Choice A is incorrect as passive smoking can indeed be harmful to the developing fetus. Choice C is incorrect as the negative impact of teratogens is often not reversible. Choice D is incorrect as serious defects can occur throughout prenatal development, not just in the germinal period.

3. During the third stage of labor, __________.

• A. the cervix thins to nothing
• B. uterine contractions begin
• C. the placenta is delivered
• D. the baby is born

Correct answer: C

Rationale: During the third stage of labor, the correct answer is C, the placenta is delivered. This stage occurs after the baby is born and involves the expulsion of the placenta from the uterus. Choice A is incorrect because the thinning of the cervix to nothing typically occurs during the first stage of labor. Choice B is incorrect as uterine contractions usually begin during the first stage of labor to help with the dilation of the cervix. Choice D is incorrect because the baby is typically born in the second stage of labor, not the third.

4. Which statement describes a limitation of the clinical method?

• A. It may not yield observations typical of participants’ behavior in everyday life.
• B. Researchers cannot control conditions under which participants are observed.
• C. The findings cannot be applied to individuals other than the participant.
• D. It does not usually yield rich, descriptive insights into factors that affect development. Answer: C Page Ref: 30 Skill Level: Understand Topic: Studying Development Difficulty Level: Moderate

Correct answer: C

Rationale: The statement that describes a limitation of the clinical method is that the findings cannot be applied to individuals other than the participant. The clinical method typically involves in-depth studies of individual participants, which may limit generalizability to a broader population. This means that the findings from a clinical study may not be applicable to other individuals who are not directly involved in the study.

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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