Nursing Elites

1. Piaget's _________ stage is the most complex period of development.

• A. sensorimotor
• B. preoperational
• C. concrete operational
• D. formal operational

Correct answer: D

Rationale: The formal operational stage in Piaget's theory is characterized by abstract reasoning, hypothetical thinking, and logical reasoning. This stage represents the most complex period of cognitive development according to Piaget. Choices A, B, and C refer to earlier stages in Piaget's theory and do not involve the level of abstract thinking and logical reasoning seen in the formal operational stage.

2. Which statement about the human immunodeficiency virus (HIV) is true?

• A. About 30 percent of all new HIV infections affect women.
• B. In South Africa, 30 percent of all pregnant women are HIV-positive.
• C. About 30 percent of new HIV infections occur in developing countries.
• D. Untreated HIV-infected mothers pass the virus to the fetus 30 percent of the time.

Correct answer: B

Rationale: The correct answer is B: 'In South Africa, 30 percent of all pregnant women are HIV-positive.' This statement is true as South Africa has a high prevalence of HIV among pregnant women, emphasizing the need for interventions to prevent mother-to-child transmission. Choices A, C, and D are incorrect. Choice A is inaccurate as women account for more than 50% of new HIV infections globally. Choice C is misleading as the majority of new HIV infections actually occur in sub-Saharan Africa, not just developing countries. Choice D is also incorrect as without treatment, the risk of mother-to-child transmission is higher than 30%.

3. Which major theory of human development emphasizes plasticity at all ages?

• A. psychoanalytic perspective
• B. ethology
• C. evolutionary developmental psychology
• D. lifespan perspective

Correct answer: D

Rationale: The correct answer is D, the lifespan perspective. This perspective underscores the idea that individuals have the capacity for growth and change at any age, highlighting plasticity throughout the lifespan. It acknowledges the continuous development and adaptability of individuals to various experiences and factors. Choice A, the psychoanalytic perspective, focuses more on unconscious processes and early childhood experiences. Choice B, ethology, emphasizes the study of animal behavior in natural environments. Choice C, evolutionary developmental psychology, examines how evolutionary principles influence human development but does not specifically focus on plasticity at all ages.

4. The yolk sac __________.

• A. forms during the third trimester of pregnancy
• B. is the outer ring of cells that surrounds the blastocyst Copyright © 2018 Laura E. Berk. All Rights Reserved. 3 Test Bank for Berk, Development Through the Lifespan, 7e
• C. produces blood cells until the organs are mature enough to take over this function
• D. contains one large vein that delivers blood loaded with nutrients and two arteries that remove waste Answer: C Page Ref: 77 Skill Level: Understand Topic: Prenatal Development Difficulty Level: Moderate

Correct answer: C

Rationale: The yolk sac is an extraembryonic membrane that plays a significant role in the early development of the embryo. One of its functions is to produce blood cells until the organs are mature enough to take over this function. This process occurs during the early stages of prenatal development to support the growing embryo before it can sustain itself independently.

5. Fraternal twins are ____________.

• A. genetically identical
• B. no more alike than ordinary siblings
• C. less common than other types of multiple offspring
• D. less likely with each additional birth

Correct answer: B

Rationale: The correct answer is B. Fraternal twins are no more alike than ordinary siblings because they share about 50% of their genes, just like other siblings. Choice A is incorrect as fraternal twins are not genetically identical. Choice C is incorrect as fraternal twins are actually the most common type of multiple offspring. Choice D is incorrect as the likelihood of fraternal twins is not affected by the number of births a mother has had.

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