a 20 week old fetus can
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ATI RN

Growth and Development Exam

1. A 20-week-old fetus can __________.

Correct answer: A

Rationale: A 20-week-old fetus is able to be stimulated as well as irritated by sounds because by this stage of prenatal development, the fetus's auditory system is already well-developed. It can respond to external sounds and may even startle or move in reaction to loud noises.

2. According to operant conditioning theory, __________.

Correct answer: D

Rationale: According to operant conditioning theory, the frequency of a behavior can be increased by following it with a wide variety of reinforcers. In operant conditioning, behaviors are shaped through reinforcement, which can be positive (rewarding) or negative (removal of something unpleasant). By providing reinforcement following a behavior, the likelihood of that behavior occurring again in the future is increased. This supports the notion that the frequency of a behavior can be increased by using reinforcers in operant conditioning. Choices A, B, and C are incorrect because operant conditioning focuses on the relationship between behavior and its consequences through reinforcement (positive or negative) to increase the likelihood of the behavior recurring, rather than punishment, cultural influences, or the development of the id based on societal values.

3. Longitudinal research can identify common patterns as well as individual differences in development because the investigator __________.

Correct answer: C

Rationale: Longitudinal research involves tracking the performance of each person over time. By doing so, researchers can observe common patterns in development among a group of individuals and also identify individual differences in how each person progresses over time. This methodology allows researchers to gather data on the same individuals repeatedly, offering insights into how development unfolds over the lifespan. Choices A, B, and D are incorrect because longitudinal research focuses on observing individuals over time rather than studying groups at a single point, randomly assigning participants to treatments, or conducting quasi-experiments.

4. Dr. Langley's work is devoted to understanding constancy and change throughout the lifespan. Dr. Langley's field of study is __________.

Correct answer: D

Rationale: Dr. Langley's work being focused on understanding constancy and change throughout the lifespan aligns with the field of developmental science, which studies how individuals grow and change from birth through old age. This field encompasses the study of physical, cognitive, social, emotional, and other aspects of development across the lifespan. Choice A, genetics, primarily focuses on the study of genes, heredity, and genetic variation, which is not directly related to understanding constancy and change throughout the lifespan. Choice B, clinical psychology, concentrates on the diagnosis and treatment of mental, emotional, and behavioral disorders rather than the broader study of development across the lifespan. Choice C, adolescent development, is more specific and limited in scope compared to the comprehensive study of development across the entire lifespan, which is the focus of developmental science.

5. Prenatally malnourished babies frequently __________.

Correct answer: C

Rationale: Prenatally malnourished babies frequently catch respiratory illnesses. Malnourished babies have weakened immune systems, making them more susceptible to illnesses such as respiratory infections. This is a common consequence that is observed in babies who did not receive adequate nutrition during the prenatal period. Choices A, B, and D are incorrect. While malnourished babies may have feeding challenges, rejecting breast milk is not a common consequence. Enlarged hearts are not typically associated with prenatal malnutrition, and having a higher-than-average birth weight is unlikely in malnourished babies.

Similar Questions

Dr. Faulkner believes that directly observable events, such as stimuli and responses, are the appropriate focus of the study of development. Dr. Faulkner probably follows the __________ perspective of development.
In field experiments, researchers __________.
Dr. George predicted that positive reinforcement would increase prosocial behavior in preschoolers. Dr. George's prediction is an example of a __________.
In egalitarian marriages, __________.
Ecological systems theory views the person as __________.

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