ATI RN
Human Growth and Development Exam Questions
1. Around __________, Baby Alanna should begin to prefer a salty taste to plain water.
- A. 2 weeks
- B. 6 weeks
- C. 2 months
- D. 4 months
Correct answer: D
Rationale: At around 4 months of age, babies begin to develop a preference for salty taste over plain water. This preference is part of their sensory development and exploration of tastes. Introducing a variety of flavors, including salty tastes, at this stage helps broaden the baby's palate and acceptance of different foods later on. Choices A, B, and C are incorrect as babies typically do not develop a preference for salty tastes over plain water at 2 weeks, 6 weeks, or 2 months of age. These earlier stages are more focused on milk feeding and the introduction of solid foods usually begins around 4-6 months of age.
2. Shamona, a pregnant mother in Flint, Michigan, is concerned about the drinking water, which shows high levels of lead. Shamona should know that high levels of prenatal lead exposure are related to __________.
- A. facial abnormalities and heart defects
- B. defects of the genitals and urinary tract
- C. low birth weight and brain damage
- D. a variety of childhood cancers
Correct answer: C
Rationale: High levels of prenatal lead exposure are related to low birth weight and brain damage. Lead exposure during pregnancy can have harmful effects on the developing fetus, leading to complications such as decreased birth weight and potential long-term brain damage. Choices A, B, and D are incorrect because they do not directly correlate with the known effects of prenatal lead exposure. While lead exposure can indeed cause a variety of health issues, such as heart defects and urinary tract problems, the primary concerns related to prenatal exposure are low birth weight and brain damage.
3. Fraternal twins are ____________.
- A. genetically identical
- B. no more alike than ordinary siblings
- C. less common than other types of multiple offspring
- D. less likely with each additional birth
Correct answer: B
Rationale: The correct answer is B. Fraternal twins are no more alike than ordinary siblings because they share about 50% of their genes, just like other siblings. Choice A is incorrect as fraternal twins are not genetically identical. Choice C is incorrect as fraternal twins are actually the most common type of multiple offspring. Choice D is incorrect as the likelihood of fraternal twins is not affected by the number of births a mother has had.
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. Taking tests and answering questionnaires are examples of __________.
- A. research designs
- B. theories
- C. hypotheses
- D. research methods
Correct answer: D
Rationale: Taking tests and answering questionnaires are examples of research methods. Research methods refer to the specific approaches used in conducting research, such as collecting data, analyzing information, and drawing conclusions. In this case, tests and questionnaires are tools used to gather information and data for research purposes, making them examples of research methods. Choices A, B, and C are incorrect because research designs refer to the overall structure and plan of a study, theories are explanations developed through research and observation, and hypotheses are specific predictions or statements that can be tested through research.
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