which statement about the human immunodeficiency virus hiv is true
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ATI RN

Human Growth and Development Exam 1

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

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%.

2. Ecological systems theory views the person as __________.

Correct answer: B

Rationale: Ecological systems theory views the person as developing within a complex system of relationships affected by multiple levels of the surrounding environment. This perspective emphasizes the interconnectedness of individuals with their social and physical environment, recognizing that development is influenced by various factors interacting at different levels of the ecological system. Choice A is incorrect because it describes a genetically determined development process, which is not the focus of ecological systems theory. Choice C is incorrect because it highlights observational learning as the primary influence on development, neglecting the broader environmental factors. Choice D is incorrect as it compares the person to a computer system, which does not align with the principles of ecological systems theory.

3. Nine-year-old Krista gives part of her allowance to charity and collects canned goods for the food bank through her scout troop. Krista is developing __________.

Correct answer: B

Rationale: The correct answer is B: empathy. Empathy is the ability to understand and share the feelings of others, which is a crucial social development in childhood. In this scenario, Krista's actions of giving to charity and collecting goods for the food bank demonstrate her growing empathy towards those in need. Choice A, pride, does not capture the essence of understanding and sharing others' feelings. Choice C, guilt, is not appropriate as there is no indication that Krista feels guilty about her actions. Choice D, inferiority, is unrelated to the positive behavior displayed by Krista.

4. According to cognitive-developmental theory, a scheme is __________.

Correct answer: D

Rationale: In cognitive-developmental theory, a scheme is an organized way of making sense of experience. This term refers to mental structures or frameworks that help individuals interpret and understand the world around them. Choice A is incorrect because schemes are developed through interaction with the environment. Choice B refers to object permanence, a concept from Piaget's theory of cognitive development, not schemes. Choice C describes observational learning, which is different from the concept of schemes in cognitive development.

5. Which individual is most likely to experience the greatest percentage of REM sleep?

Correct answer: D

Rationale: Preterm newborns, like Cheryl, experience a higher percentage of REM sleep compared to full-term newborns. This is because REM sleep plays a critical role in brain development, and preterm infants have an increased need for brain development due to their early arrival. Therefore, Cheryl, as a preterm newborn, is most likely to experience the greatest percentage of REM sleep among the individuals listed.

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