ATI RN
Human Growth and Development Exam 1
1. In a correlational design, researchers __________.
- A. gather information on individuals without altering their experiences
- B. divide events and behaviors of interest into two types: dependent and independent variables
- C. use an evenhanded procedure to assign people to two or more treatment conditions
- D. directly control or manipulate changes in the independent variable
Correct answer: A
Rationale: In a correlational design, researchers gather information on individuals without altering their experiences. Correlational studies examine the relationship between two or more variables without any manipulation or control by the researchers. The researchers simply observe and measure the variables of interest without intervening in any way. Choices B, C, and D are incorrect because they describe aspects related to experimental designs rather than correlational designs. In an experimental design, researchers manipulate variables, assign participants to different treatment conditions, and control changes in the independent variable, which is not the case in correlational studies.
2. 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.
3. __________ supplementation early in pregnancy reduces the risk of abnormalities of the neural tube, the circulatory system, and the urinary tract.
- A. Vitamin A
- B. Folic acid
- C. Vitamin D
- D. Vitamin C
Correct answer: B
Rationale: Folic acid supplementation early in pregnancy is crucial as it reduces the risk of abnormalities in the developing fetus. It is specifically known to prevent issues related to the neural tube, circulatory system, and urinary tract. Vitamin A, Vitamin D, and Vitamin C do not play the same role as folic acid in preventing these specific birth defects, making them incorrect choices.
4. The discontinuous view of development holds that __________.
- A. infants and preschoolers respond to the world in much the same way as adults do
- B. growth is the process of gradually augmenting the skills that were present from the beginning
- C. infants and children have unique ways of thinking, feeling, and behaving
- D. development is a smooth process limited only by a lack of information and precision
Correct answer: C
Rationale: The discontinuous view of development holds that infants and children have unique ways of thinking, feeling, and behaving. This perspective suggests that development is not a continuous or smooth process, but rather occurs in distinct stages or phases marked by qualitative differences in abilities and behaviors. This contrasts with the idea that development is a gradual augmentation of skills present from the beginning (choice B) or that infants and preschoolers respond to the world in the same way as adults (choice A). Choice D is incorrect because the discontinuous view does not consider development as a smooth process limited by a lack of information and precision. Ultimately, the discontinuous view emphasizes the distinct and evolving nature of development across the lifespan.
5. Nonnormative influences are irregular and do not follow a predictable timetable.
- A. Nonnormative
- B. History-graded
- C. Age-graded
- D. Bio-historical
Correct answer: A
Rationale: The correct answer is A: Nonnormative. Nonnormative influences are events or experiences that are irregular and unique to the individual, so they do not follow a predictable timetable. These influences can include major life events like winning the lottery or experiencing a natural disaster, and they have a significant impact on a person's development. Choice B, History-graded influences, are events that are common to people of a particular generation due to historical circumstances. Choice C, Age-graded influences, are events that are typical for people of a certain age group. Choice D, Bio-historical, is not a recognized term in developmental psychology.
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