ATI RN
Psychology 101 Exam 3 Test
1. Biological discoveries ________.
- A. have lessened the subjectivity of definitions of abnormality.
- B. demonstrate that the environment plays only a minimal role in the development of psychopathology.
- C. make it clear that mental disorders are diseases and should be dealt with by the medical profession.
- D. have led to a recognition of the role that genetic factors and other biological influences play in the development of many disorders.
Correct answer: D
Rationale: Biological discoveries have indeed led to a recognition of the role that genetic factors and other biological influences play in the development of many disorders. This understanding has shifted the focus from purely environmental explanations to acknowledging the significant impact of genetics and biology on mental health. Choices A, B, and C are incorrect because biological discoveries have not specifically addressed the subjectivity of definitions of abnormality, minimized the role of the environment in psychopathology, or definitively classified mental disorders as diseases that should only be handled by the medical profession.
2. While out for a walk, you come across a ferocious dog. You feel your heart beating faster and your palms begin to sweat. Which part of the peripheral nervous system is activated in this situation?
- A. Autonomic
- B. Sympathetic
- C. Parasympathetic
- D. Somatic
Correct answer: B
Rationale: The correct answer is B: Sympathetic. When encountering a stressful situation like a ferocious dog, the sympathetic nervous system is activated, leading to the 'fight or flight' response. This response triggers physiological changes like increased heart rate, sweating, and heightened alertness to prepare the body to deal with the perceived threat. The autonomic nervous system (Choice A) encompasses both the sympathetic and parasympathetic divisions, so it's a broader category. The parasympathetic nervous system (Choice C) is responsible for the body's 'rest and digest' functions, which are opposite to the physiological changes seen in a stress response. The somatic nervous system (Choice D) controls voluntary movements and sensory information, not the physiological responses seen in a stress reaction.
3. What is a person's total genetic endowment?
- A. Phenotype
- B. Genotype
- C. Chromosomes
- D. DNA
Correct answer: B
Rationale: The correct answer is B: Genotype. A genotype refers to a person's total genetic endowment, representing the specific genetic makeup inherited from their parents. This includes all the genes and genetic information contained in an individual's DNA. Choices A, C, and D are incorrect because: A) Phenotype refers to the observable characteristics resulting from the interaction of genetics and the environment; C) Chromosomes are physical structures that contain genes, not the total genetic endowment itself; D) DNA carries genetic information but is just one component of an individual's total genetic endowment.
4. What is extinction and how might it be used in treating a disorder?
- A. Extinction strengthens the conditioned response by continuously pairing the conditioned stimulus with the unconditioned stimulus.
- B. Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus.
- C. Extinction is ineffective and is not used in treating disorders.
- D. Extinction is the process of intensifying the conditioned response by pairing the conditioned stimulus with a stronger unconditioned stimulus.
Correct answer: B
Rationale: The correct answer is B. Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus. This helps in reducing or eliminating undesired behaviors. Choice A is incorrect because extinction does not strengthen the conditioned response but weakens it. Choice C is also incorrect as extinction is a valid technique used in treating disorders by reducing unwanted behaviors. Choice D is incorrect as extinction does not involve intensifying the conditioned response but rather diminishing it.
5. Understanding the causes of mental disorders is important because ________
- A. effective treatment is not possible without such an understanding.
- B. classification of disorders cannot be done without such information.
- C. such knowledge might make both the prevention and cure of mental disorders possible.
- D. disagreements about the causes of psychopathology have long limited the advancements made in the study of abnormal psychology.
Correct answer: C
Rationale: Understanding the causes of mental disorders is crucial because it can potentially lead to both prevention and cure. By identifying the root causes, strategies can be developed to prevent the onset of disorders, and effective treatments can be tailored to address these causes directly. This approach can make treatments more efficient, as addressing the underlying factors contributing to the disorder can result in better outcomes for individuals. Choices A and B are incorrect because while understanding causes is important for effective treatment and classification, the primary focus is on prevention and cure. Choice D, while highlighting the impact of disagreements on advancements in abnormal psychology, does not directly address the importance of understanding causes for prevention and cure.
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