ATI RN
Exam 4 Psychology
1. One key issue in the study of human development is the continuity-discontinuity issue. The discontinuity side posits that development is characterized by change in type or kind. These are known as ____.
- A. Qualitative change
- B. Quantitative change
- C. Maturation
- D. Multidirectional development
Correct answer: A
Rationale: The correct answer is A: Qualitative change. Qualitative change aligns with the discontinuity view by involving changes in type or kind. This contrasts with quantitative change (B), which is about changes in amount or quantity. Maturation (C) refers to the process of becoming fully developed in a particular way, and multidirectional development (D) emphasizes that development involves both gains and losses, not specifically focusing on changes in type or kind.
2. The site of chemical communication in the brain is the ________.
- A. neuron
- B. synapse
- C. axon
- D. dendrite
Correct answer: B
Rationale: The synapse is the correct answer. It is the site where communication between neurons occurs through the release and reception of neurotransmitters. Choice A, neuron, is incorrect as it is the cell itself rather than a specific site of communication. Choice C, axon, is also incorrect as it is a part of the neuron that transmits signals away from the cell body. Choice D, dendrite, is not the correct answer either, as dendrites receive signals from other neurons but do not release neurotransmitters for communication.
3. Why is it particularly useful to study identical twins who were raised in different environments?
- A. Differences in brain function can be easily identified.
- B. Concordance rates tend to be higher.
- C. It is possible that the genetics of twins who have been separated have changed in ways to explain any differences found.
- D. It is possible that high concordance rates between identical twins reared together are due to their being treated more similarly than nonidentical twins.
Correct answer: D
Rationale: Studying identical twins raised in different environments allows researchers to understand the impact of genetics versus environmental factors on traits. Choice A is incorrect because differences in brain function can be influenced by a variety of factors and not solely by environmental differences. Choice B is incorrect as concordance rates tend to be higher in identical twins reared together due to shared genetics and environment. Choice C is incorrect because genetics do not change due to being raised in different environments.
4. During which span of months or years is a child particularly responsive to specific forms of experience or influenced by their absence?
- A. Nonnormative influences
- B. Normative age-graded influence
- C. Normative history-graded influence
- D. Sensitive period
Correct answer: D
Rationale: The correct answer is 'Sensitive period.' A sensitive period refers to a specific span of time during development when a child is especially responsive to certain experiences. This period allows for optimal development in specific areas. Nonnormative influences (Choice A) are events that are irregular and unpredictable, while normative age-graded influences (Choice B) are typical events that occur in a similar manner for most people in a specific age group. Normative history-graded influences (Choice C) are events that most people in a specific culture or cohort experience at the same time.
5. What are genes made of?
- A. Trisomes
- B. Chromosomes
- C. DNA
- D. Proteins
Correct answer: C
Rationale: Genes are made of DNA, which is the genetic material that carries the instructions for the development, functioning, growth, and reproduction of organisms. While chromosomes contain genes, they are not what genes themselves are made of. Proteins are involved in gene expression and regulation, but they are not the primary material genes consist of. Trisomes is an incorrect term in this context and does not relate to the composition of genes.
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