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. __________ emerges early prenatally and is well-developed at birth.
- A. Visual acuity
- B. Color vision
- C. Depth perception
- D. Sensitivity to touch
Correct answer: D
Rationale: Sensitivity to touch emerges early prenatally and is well-developed at birth. Newborn babies have a well-developed sense of touch, which is crucial for bonding with their caregivers and exploring their environment. This sensitivity to touch helps babies respond to comforting sensations such as gentle strokes and cuddles. Visual acuity, color vision, and depth perception are sensory capabilities that develop and mature after birth, not prenatally. While important for interacting with the environment, they are not as well-developed at birth as sensitivity to touch.
3. The concept of ________ means that because of their genetic makeup, individuals differ in their responsiveness to qualities of the environment.
- A. gene-environment interaction
- B. niche-picking
- C. passive correlation
- D. evocative correlation
Correct answer: A
Rationale: The correct answer is A, gene-environment interaction. This concept highlights that genetic factors play a role in how individuals react to environmental factors. Niche-picking (choice B) refers to the tendency of individuals to select environments that complement their genetic predispositions, not the inherent genetic differences in responsiveness. Passive correlation (choice C) involves the association between the genetic makeup of parents and the environment they provide for their children, not individual differences in responsiveness. Evocative correlation (choice D) relates to the idea that an individual's genetic traits can elicit certain responses from others in the environment, rather than individual differences in responsiveness.
4. Which statement describes a limitation of the clinical method?
- A. It may not yield observations typical of participants’ behavior in everyday life.
- B. Researchers cannot control conditions under which participants are observed.
- C. The findings cannot be applied to individuals other than the participant.
- D. It does not usually yield rich, descriptive insights into factors that affect development. Answer: C Page Ref: 30 Skill Level: Understand Topic: Studying Development Difficulty Level: Moderate
Correct answer: C
Rationale: The statement that describes a limitation of the clinical method is that the findings cannot be applied to individuals other than the participant. The clinical method typically involves in-depth studies of individual participants, which may limit generalizability to a broader population. This means that the findings from a clinical study may not be applicable to other individuals who are not directly involved in the study.
5. Under ethical standards, when is deception permitted in research studies?
- A. if the participants are young enough that they would not understand the deception
- B. if investigators satisfy institutional review boards that such practices are necessary
- C. if researchers can observe participants from behind one-way mirrors
- D. if the participants give informed consent and the researchers never reveal the real purpose of the study
Correct answer: B
Rationale: Ethical standards permit deception in research studies if investigators satisfy institutional review boards that such practices are necessary. Institutional review boards are responsible for ensuring that research studies comply with ethical guidelines and protect the welfare of study participants. Deception should only be used when necessary, and the board's approval indicates that safeguards are in place to minimize harm to participants. Choices A, C, and D are incorrect because ethical deception in research studies is not based on the age of participants, observing from behind mirrors, or obtaining informed consent without revealing the study's real purpose.
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