ATI RN
Human Growth and Development Exam 1
1. Which statement is supported by research on newborn taste preferences?
- A. Newborns cannot distinguish basic tastes.
- B. Not until 4 months do babies prefer a salty taste to plain water.
- C. Newborns prefer the taste of formula to breast milk.
- D. Unlike adults, babies relax their facial muscles in response to sour tastes.
Correct answer: B
Rationale: Research on newborn taste preferences has found that not until around 4 months of age do babies start to show a preference for a salty taste over plain water. This indicates that newborns do have some ability to distinguish tastes, contrary to the statement in option A. The statement in option C that newborns prefer the taste of formula to breast milk is not supported by research on newborn taste preferences. Option D, stating that babies relax their facial muscles in response to sour tastes, is also not a supported statement regarding newborn taste preferences.
2. Dr. O'Connor wants 90-year-old Mr. Takashi to participate in a research study that involves moderate risks. Mr. Takashi is incapable of consenting. Which statement best expresses your advice regarding Mr. Takashi's participation in the study?
- A. He should not be allowed to participate in the study under any circumstances.
- B. He should be allowed to participate in the study regardless of the benefit.
- C. He should be allowed to participate in the study only if his participation will benefit others.
- D. He should be allowed to participate in the study only if it is likely to benefit him directly.
Correct answer: D
Rationale: Mr. Takashi should be allowed to participate in the study only if it is likely to benefit him directly. This decision aligns with the principle of beneficence in research ethics, which emphasizes maximizing benefits and minimizing risks for research participants. Since Mr. Takashi is incapable of giving consent, his participation should be based on the likelihood of direct benefits to him rather than solely for the benefit of others or solely for research purposes. Option A is too restrictive and does not consider potential benefits to Mr. Takashi. Option B is flawed as it disregards the need for the study to benefit Mr. Takashi. Option C focuses on benefiting others, which is not the primary consideration when the participant cannot give consent.
3. A __________ is a means of building schemes in which an infant who has stumbled onto a new experience caused by his or her own motor activity tries to repeat the event again and again.
- A. sensorimotor reflex
- B. circular reaction
- C. mental representation
- D. goal-directed behavior
Correct answer: B
Rationale: A circular reaction is a process where an infant repeats a specific action to explore and learn about the environment through their own motor activity. This repetition helps the infant to understand the consequences of their actions and build cognitive schemes. Sensorimotor reflex (choice A) refers to automatic responses to stimuli, not a purposeful repetition of actions to learn. Mental representation (choice C) involves internal cognitive structures to represent objects or events in the mind, which is different from the repetitive behavior described in the question. Goal-directed behavior (choice D) is purposeful and intentional, unlike the repetitive nature of circular reactions in infants' learning process.
4. Sigmund Freud constructed his psychosexual theory __________.
- A. on the basis of his adult patients' memories of painful childhood events
- B. by conducting studies of animal behavior
- C. on the basis of interviews with institutionalized children and adolescents
- D. by carefully observing his own children
Correct answer: A
Rationale: Sigmund Freud constructed his psychosexual theory on the basis of his adult patients' memories of painful childhood events. Freud believed that events in early childhood had a significant impact on an individual's development and personality. He used his patients' recollections of childhood experiences to develop his theories on psychosexual development. Choice B is incorrect as Freud did not base his theory on studies of animal behavior. Choice C is incorrect as Freud's theory was not solely based on interviews with institutionalized children and adolescents. Choice D is incorrect as Freud did not construct his theory by observing his own children.
5. Which factor disrupts the brain's regulation of hunger and metabolism?
- A. Self-regulation
- B. Frequent eating out
- C. Reduced sleep
- D. Using screen media
Correct answer: C
Rationale: Reduced sleep is the correct answer as it affects hormones that regulate hunger and metabolism, leading to increased appetite and weight gain. Self-regulation is not directly related to the brain's regulation of hunger and metabolism. Frequent eating out may impact food choices and portion sizes but is not specifically linked to disrupting the brain's regulation. Using screen media can affect sleep patterns but is not as directly related to the brain's regulation of hunger and metabolism as reduced sleep.
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