ATI RN
Human Growth and Development Exam 1
1. Maryann is pregnant and works in a smoke-filled environment. What can you tell her about passive smoking?
- A. The negative effects of smoking are only evident in children born to heavy smokers.
- B. Passive smoking is related to low birth weight, infant death, and childhood respiratory illnesses.
- C. Smoke-filled environments are harmful to expectant mothers, but not to their unborn children.
- D. The effects of passive smoking are not yet known.
Correct answer: B
Rationale: Passive smoking, also known as secondhand smoke, can have harmful effects on pregnancies. Research has shown that exposure to smoke-filled environments during pregnancy is linked to low birth weight, infant death, and childhood respiratory illnesses. Pregnant women should avoid exposure to secondhand smoke to protect the health of their unborn babies. Choice A is incorrect because passive smoking affects both the mother and the unborn child, not just children born to heavy smokers. Choice C is incorrect as it underestimates the risks of smoke-filled environments on unborn children. Choice D is incorrect as research has already established the harmful effects of passive smoking on pregnancies.
2. __________ increases tenfold from the twentieth week until birth.
- A. Amniotic fluid
- B. Brain weight
- C. Fetal length
- D. Neuron production
Correct answer: B
Rationale: Brain weight increases tenfold from the twentieth week until birth. This rapid growth and development of the brain during the prenatal period is crucial for setting the foundation for future cognitive and neurological functions. Choices A, C, and D are incorrect because although they also undergo changes during prenatal development, none of them increase tenfold from the twentieth week until birth, unlike brain weight.
3. 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.
4. G. Stanley Hall and his student, Arnold Gesell, __________.
- A. discovered that prenatal growth is strikingly similar in many species
- B. launched the normative approach
- C. constructed the first standardized intelligence test
- D. were the forefathers of psychoanalytic theory
Correct answer: B
Rationale: G. Stanley Hall and his student, Arnold Gesell, launched the normative approach. This approach involves studying large numbers of people of different ages and examining the age-related averages of behaviors to establish norms or typical development patterns. These scholars focused on the systematic observation of how and when certain behaviors appear in children. Choices A, C, and D are incorrect because they do not accurately reflect the contributions of G. Stanley Hall and Arnold Gesell in the field of developmental psychology.
5. Dr. Anderson wants to conduct a study to determine the cause-and-effect relationship between domestic violence and anger in children. Dr. Anderson should use a(n) __________ design.
- A. structured
- B. observational
- C. correlational
- D. experimental
Correct answer: D
Rationale: Dr. Anderson should use an experimental design to determine the cause-and-effect relationship between domestic violence and anger in children. In an experimental design, the researcher manipulates the independent variable (in this case, exposure to domestic violence) to observe its effect on the dependent variable (anger in children). This design allows for the establishment of a cause-and-effect relationship by controlling for other variables that may influence the outcomes. Observational design (Choice B) involves observing subjects in their natural environment without interference, correlational design (Choice C) examines the relationship between variables without manipulating them, and structured design (Choice A) typically refers to a study with predetermined procedures and data collection methods, which may not be suitable for establishing cause-and-effect relationships.
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