ATI RN
Human Growth and Development Final Exam Answers
1. During the second month of pregnancy, __________.
- A. the umbilical cord first appears as a primitive body stalk
- B. touch sensitivity extends to most of the body
- C. the heart develops separate chambers
- D. the heartbeat can be heard through a stethoscope
Correct answer: C
Rationale: During the second month of pregnancy, the heart of the developing fetus begins to develop separate chambers, forming the structure necessary for a fully functioning heart. This is a significant milestone in the prenatal development process. Choices A, B, and D are incorrect because the appearance of the umbilical cord as a primitive body stalk typically occurs around week 5-6, touch sensitivity extending to most of the body is more characteristic of the end of the second trimester, and the heartbeat is usually detectable through a stethoscope around the 18th to 20th week of pregnancy, not during the second month.
2. When children are research participants, __________.
- A. Investigators need to seek the opinion of others if in doubt about the harmful effects of research.
- B. They have the right to concealment of their identity on information collected in the course of research.
- C. There is a need to inform them or their parents of the results of the research.
- D. Informed consent of their parents as well as others who act on their behalf should be obtained.
Correct answer: D
Rationale: When children are research participants, it is essential to obtain informed consent from their parents or others who act on their behalf. This is to ensure that the child's rights and well-being are protected during the research process. Informed consent is a fundamental ethical principle in research involving children, as they may not have the capacity to fully understand the implications of their participation. Choice A is incorrect because seeking the opinion of others when in doubt about harmful effects is not a substitute for informed consent. Choice B is incorrect because children do not have an absolute right to conceal their identity in research, especially when it comes to ensuring their safety and well-being. Choice C is incorrect as it is important to inform children or their parents about the results of the research to maintain transparency and respect for their participation.
3. Although great diversity characterizes the interests and concerns of investigators who study development, they share a single goal: to identify __________.
- A. genetic factors that contribute to longevity
- B. environmental factors that contribute to disease and illness
- C. those factors that lead to abnormal development in children and adolescents
- D. those factors that influence consistencies and transformations in people from conception to death
Correct answer: D
Rationale: The correct answer is D because investigators who study development aim to identify the factors that influence consistencies and transformations in people from conception to death. This goal encompasses various domains such as physical, cognitive, emotional, and social development, highlighting the comprehensive nature of developmental research. Choices A, B, and C are incorrect as they do not align with the overarching goal of developmental researchers, which is to understand the factors influencing individuals throughout their lifespan, rather than focusing solely on genetic factors, environmental factors related to disease, or abnormal development in specific age groups.
4. The discontinuous view of development holds that __________.
- A. infants and preschoolers respond to the world in much the same way as adults do
- B. growth is the process of gradually augmenting the skills that were present from the beginning
- C. infants and children have unique ways of thinking, feeling, and behaving
- D. development is a smooth process limited only by a lack of information and precision
Correct answer: C
Rationale: The discontinuous view of development holds that infants and children have unique ways of thinking, feeling, and behaving. This perspective suggests that development is not a continuous or smooth process, but rather occurs in distinct stages or phases marked by qualitative differences in abilities and behaviors. This contrasts with the idea that development is a gradual augmentation of skills present from the beginning (choice B) or that infants and preschoolers respond to the world in the same way as adults (choice A). Choice D is incorrect because the discontinuous view does not consider development as a smooth process limited by a lack of information and precision. Ultimately, the discontinuous view emphasizes the distinct and evolving nature of development across the lifespan.
5. Baby Gabriella claps her hands after her mother does. Gabriella is displaying __________.
- A. reinforcement
- B. classical conditioning
- C. observational learning
- D. adaptation
Correct answer: C
Rationale: Observational learning is when an individual learns by watching others and mimicking their actions or behaviors. In this scenario, Baby Gabriella claps her hands after her mother does, indicating she is learning through observing her mother's behavior and imitating it. The other choices are incorrect: Reinforcement typically involves a consequence that strengthens a behavior, classical conditioning is a type of learning where an association is made between two stimuli, and adaptation refers to the process of adjusting to new conditions.
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