ATI RN
Human Growth and Development Final Exam Answers
1. Researchers randomly assigned adolescents to either a single-grade classroom or a mixed-age classroom. This is an example of a __________.
- A. naturalistic observation
- B. case study
- C. natural experiment
- D. field experiment
Correct answer: D
Rationale: In this scenario, the researchers randomly assigned adolescents to either a single-grade classroom or a mixed-age classroom, which is an example of a field experiment. A field experiment involves manipulating independent variables in a natural setting to observe the effects on participants. This design allows for more control over variables compared to naturalistic observation, case studies, or natural experiments. Naturalistic observation involves observing subjects in their natural environment without manipulating any variables. A case study focuses on in-depth analysis of a single individual or a small group. A natural experiment involves observing naturally occurring events without intervention or manipulation by the researcher.
2. Newborn infants who are brain damaged or who have experienced birth trauma often __________.
- A. display disturbed REM-NREM sleep cycles
- B. cry less than those with no brain functioning problems
- C. spend about 20 percent of their total sleep time in REM sleep
- D. have very low or inaudible cries
Correct answer: A
Rationale: Newborn infants who are brain damaged or who have experienced birth trauma often display disturbed REM-NREM sleep cycles. This disruption in the sleep cycle can be a sign of neurological issues and can impact the newborn's overall health and development. Choice B is incorrect because infants with brain damage or birth trauma may actually cry more due to their discomfort or neurological issues. Choice C is incorrect because spending about 20 percent of total sleep time in REM sleep is not necessarily specific to brain-damaged or birth-traumatized infants. Choice D is incorrect because having very low or inaudible cries is not a common characteristic associated with brain damage or birth trauma in infants.
3. A major strength of the information-processing approach to development is its commitment to __________.
- A. the study of imagination
- B. flexible case study interviews
- C. rigorous research methods
- D. disproving other developmental theories
Correct answer: C
Rationale: The major strength of the information-processing approach to development is its commitment to rigorous research methods. This approach emphasizes systematic observation, measurement, and experimentation to study cognitive development in individuals. By using rigorous research methods, researchers can gather reliable and valid data to better understand how information is processed in the human mind. This commitment to methodological rigor enhances the credibility and validity of the conclusions drawn within the information-processing approach to development. Choices A, B, and D are incorrect because the information-processing approach focuses on empirical research methods rather than the study of imagination, case study interviews, or disproving other developmental theories.
4. The third stage of labor lasts about __________.
- A. 5 to 10 minutes
- B. 20 to 50 minutes
- C. 4 to 6 hours
- D. 12 to 14 hours
Correct answer: A
Rationale: The correct answer is A: 5 to 10 minutes. The third stage of labor typically lasts about 5 to 10 minutes. This stage begins after the baby is born and ends when the placenta is delivered. It is the shortest stage of labor compared to the first and second stages. Choice B, 20 to 50 minutes, is incorrect as it is too long for the duration of the third stage. Choice C, 4 to 6 hours, and Choice D, 12 to 14 hours, are also incorrect as they are significantly longer than the actual duration of the third stage of labor.
5. Which Apgar criterion can be more difficult to apply to newborns of all races?
- A. pink color
- B. reflex irritability
- C. limp muscle tone
- D. strong breathing
Correct answer: D
Rationale: Among the Apgar criteria, the pink color (choice A), reflex irritability (choice B), and limp muscle tone (choice C) are relatively easy to assess in newborns of all races. However, the criterion that can be more difficult to apply to newborns of all races is strong breathing (choice D). This is because evaluating the strength of a newborn's breathing can be more subjective and require careful observation. Unlike the other criteria that have more visible and objective indicators, assessing the strength of breathing might vary based on the observer's interpretation, making it more challenging to apply universally.
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