Nokea
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%.
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__________, a strong type of painkiller used in labor and delivery, blocks sensation.
- A. Anesthetics
- B. Analgesics
- C. Anti-inflammatories
- D. Folic acids
Correct Answer: A
Rationale: Anesthetics, such as epidurals, are a strong type of painkiller used in labor and delivery that block sensation. They work by numbing the nerves in the lower part of the spine, providing pain relief during childbirth. Choice B, Analgesics, are pain relievers that reduce pain without causing loss of consciousness, but they are not as strong as anesthetics for labor pain. Choice C, Anti-inflammatories, are medications that reduce inflammation and do not directly block sensation like anesthetics. Choice D, Folic acids, are a type of B vitamin crucial for cell growth and metabolism, not used as painkillers in labor and delivery.
What is the goal of applied behavior analysis?
- A. outline changes in temperament over the lifespan
- B. eliminate undesirable behaviors and increase desirable responses
- C. examine how we think about ourselves and other people
- D. synthesize information from various sources into a detailed picture of a person's personality
Correct Answer: B
Rationale: The correct answer is B: "eliminate undesirable behaviors and increase desirable responses." Applied behavior analysis aims to modify behavior by focusing on eliminating unwanted behaviors and reinforcing desirable ones. It does not primarily deal with changes in temperament (choice A), self-perception (choice C), or personality traits (choice D). The approach involves techniques such as reinforcement to target specific behaviors, rather than broader cognitive processes or personality characteristics.
When Mateo was born prematurely to Yvonne, a cocaine addict, what can his caregivers expect?
- A. He will be very attentive to the environment
- B. His cries will be abnormally shrill and piercing
- C. He will overcome the harmful effects of drug exposure by age 3
- D. His motor development will be especially rapid during the first year
Correct Answer: B
Rationale: Mateo, being born prematurely to a cocaine-addicted mother, is at risk for several health issues. One common effect of prenatal drug exposure is a higher likelihood of sensory and regulatory problems, such as having abnormally shrill and piercing cries. This is a potential outcome that Mateo's caregivers can expect due to his circumstances. Choice A is incorrect as there is no direct correlation between being born prematurely to a cocaine-addicted mother and being very attentive to the environment. Choice C is incorrect as overcoming harmful effects of drug exposure by age 3 is overly optimistic and may not be the case for all children exposed to drugs prenatally. Choice D is incorrect as rapid motor development is not typically associated with prenatal drug exposure.
The lifespan perspective on human development assumes that development is __________.
- A. static and stable
- B. multidimensional and multidirectional
- C. continuous, rather than discontinuous
- D. largely the result of heredity
Correct Answer: B
Rationale: The lifespan perspective on human development assumes that development is multidimensional and multidirectional. This means that development occurs in various domains (such as physical, cognitive, and psychosocial) and can involve gains and losses as individuals age. This perspective recognizes that human development is complex and dynamic, involving various factors and pathways over the course of a person's life. Choices A, C, and D are incorrect because human development is not static and stable (A), can involve both continuous and discontinuous changes (C), and is influenced by a combination of heredity and environment rather than solely by heredity (D).
Tammy's father is an exceptional gymnast. When Tammy was just a toddler, her father believed that Tammy already showed great promise as a gymnast. Tammy's father probably believes that athletic ability is mostly determined by __________.
- A. nurture
- B. stages
- C. nature
- D. early experiences
Correct Answer: C
Rationale: Tammy's father likely believes that athletic ability is mostly determined by nature because he believes she showed great promise at a young age, indicating a natural talent or genetic predisposition towards gymnastics. This suggests that he attributes Tammy's abilities to her inherent qualities rather than her upbringing or experiences (nurture). While stages and early experiences can play a role in skill development, in this context, the emphasis is on innate abilities, making 'nature' the most suitable choice.