ATI RN
Psychology 101 Exam 3 Test
1. Which of the following is not a common method for studying genetic influences?
- A. The study of specific gene defects
- B. Twin studies
- C. Adoption studies
- D. Family history (pedigree) studies
Correct answer: A
Rationale: The correct answer is A. Studying specific gene defects is not a common method for investigating genetic influences. Choices B, C, and D are common methods used in genetic research. Twin studies help determine the heritability of traits, adoption studies compare similarities between adopted individuals and their adoptive families versus biological families, and family history studies track the inheritance patterns of traits within families.
2. In order for one to be diagnosed with panic disorder, the panic attacks must?
- A. Suddenly; unexpectedly
- B. Suddenly; gradually
- C. Gradually; unexpectedly
- D. Unexpectedly; suddenly
Correct answer: A
Rationale: The correct answer is A: 'Suddenly; unexpectedly.' Panic disorder is diagnosed when panic attacks occur unexpectedly, not gradually. Panic attacks are characterized by their sudden onset and are unpredictable. Choice B is incorrect because panic attacks do not manifest gradually. Choice C is incorrect because panic attacks are not expected or predicted. Choice D is incorrect as well because the unexpected nature of panic attacks is a key criterion for diagnosing panic disorder.
3. The understanding of genetic influences on behavior may never be fully achieved due to ________.
- A. the ease of researching to differentiate between the effects of the environment and genes.
- B. the likelihood that most behaviors are determined by the interaction of many genes and the environment.
- C. the reliance on twin studies in genetic research.
- D. our significant understanding of how genes impact brain chemistry.
Correct answer: B
Rationale: The correct answer is B because most behaviors are influenced by the interaction of multiple genes and the environment. Choice A is incorrect because it suggests that researching the effects of the environment and genes is easy, which is not the case. Choice C is incorrect as it focuses on a specific method (twin studies) rather than the broader concept of gene-environment interaction. Choice D is incorrect as the statement implies a high level of understanding that contradicts the idea that genetic influences on behavior may never be fully understood.
4. Rita shows better control over her eating habits at 2.5 years than her brother Richard did at the same age. Why?
- A. Girls are naturally smarter than boys.
- B. Second-born children learn faster.
- C. Girls have better fine motor skills.
- D. Boys have better gross motor skills.
Correct answer: D
Rationale: The correct answer is D because boys typically develop gross motor skills, like running and jumping, more quickly than girls. This can explain why Richard may have had less control over his eating habits compared to Rita at the same age. Choices A, B, and C are incorrect because they do not address the specific developmental aspect related to eating habits control mentioned in the question.
5. An inborn trait that is relatively permanent and differentiates one person from another is known as ________.
- A. genotype
- B. phenotype
- C. temperament
- D. characteristic
Correct answer: C
Rationale: Temperament is the correct answer because it refers to an individual's inborn, relatively permanent trait that distinguishes one person from another. Genotype (choice A) refers to the genetic makeup of an organism, not necessarily a behavioral trait. Phenotype (choice B) is the observable characteristics of an organism resulting from the interaction between its genotype and the environment. Characteristic (choice D) is a broad term that can encompass various traits and features, but it does not specifically denote an inborn and relatively permanent trait that sets individuals apart.
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