ATI RN
Human Growth and Development Final Exam Answers
1. During which period does the germinal period occur?
- A. Occurs during the second trimester of pregnancy
- B. Lasts about six weeks
- C. Lasts about two weeks
- D. Is the final period of a 38-week pregnancy
Correct answer: C
Rationale: The germinal period lasts about two weeks and occurs during the first two weeks of pregnancy. This is the time when the fertilized egg implants into the uterus and begins to divide rapidly. It is followed by the embryonic period, which lasts from about week 3 to week 8 of pregnancy. Choice A is incorrect because the germinal period happens in the early stages of pregnancy, not the second trimester. Choice B is incorrect because the germinal period typically lasts about two weeks, not six. Choice D is incorrect because the germinal period is an early stage of pregnancy and not the final period of a 38-week pregnancy.
2. In all societies studied, the most common attachment quality is the __________ pattern.
- A. insecure-avoidant
- B. insecure-resistant
- C. disorganized/disoriented
- D. secure
Correct answer: D
Rationale: The correct answer is D, 'secure.' Research shows that the secure attachment pattern is the most common across various societies. In this pattern, children feel safe, secure, and loved, allowing them to explore the world and seek comfort from their caregivers when needed. Choices A, B, and C are incorrect because while these attachment patterns exist, they are not as prevalent or universal as the secure attachment pattern. Insecure-avoidant attachment involves children avoiding or ignoring their caregiver, insecure-resistant attachment consists of ambivalence and mixed emotions towards the caregiver, and disorganized/disoriented attachment is characterized by inconsistent and often chaotic behaviors towards the caregiver.
3. Katie wonders when she will first be able to hear her fetus's heartbeat through a stethoscope. You tell her that this should happen by the __________.
- A. fourth week of pregnancy
- B. third month of pregnancy
- C. end of the second trimester
- D. beginning of the third trimester
Correct answer: B
Rationale: The correct answer is the third month of pregnancy (choice B). During the third month of pregnancy, which is around 9-12 weeks, a fetal heartbeat can typically be heard using a stethoscope. This is an exciting milestone for expectant parents as it provides reassurance about the baby's well-being. Choices A, C, and D are incorrect because by the fourth week of pregnancy, the fetal heartbeat is not usually detectable with a stethoscope. The end of the second trimester and the beginning of the third trimester are too late in the pregnancy timeline for this milestone.
4. According to operant conditioning theory, __________.
- A. the frequency of a behavior can be increased through punishment, such as disapproval
- B. normal development must be understood in relation to each culture's life situation
- C. the id develops as parents insist that children conform to the values of society
- D. the frequency of a behavior can be increased by following it with a wide variety of reinforcers
Correct answer: D
Rationale: According to operant conditioning theory, the frequency of a behavior can be increased by following it with a wide variety of reinforcers. In operant conditioning, behaviors are shaped through reinforcement, which can be positive (rewarding) or negative (removal of something unpleasant). By providing reinforcement following a behavior, the likelihood of that behavior occurring again in the future is increased. This supports the notion that the frequency of a behavior can be increased by using reinforcers in operant conditioning. Choices A, B, and C are incorrect because operant conditioning focuses on the relationship between behavior and its consequences through reinforcement (positive or negative) to increase the likelihood of the behavior recurring, rather than punishment, cultural influences, or the development of the id based on societal values.
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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