how does the diathesis stress model explain the onset of mental disorders

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Psychology 101 Final Exam

1. How does the diathesis-stress model explain the onset of mental disorders?

A. Stress alone is sufficient to cause mental disorders.
B. Both genetic vulnerability and environmental stress are needed to trigger a disorder.
C. Only genetic factors cause mental disorders.
D. Environmental stressors alone can cause mental disorders.

Correct answer: B

Rationale: The diathesis-stress model explains that the onset of mental disorders results from the interaction of genetic vulnerability (diathesis) and environmental stress. Choice A is incorrect because stress alone is not sufficient, according to the model. Choice C is incorrect as it oversimplifies by attributing mental disorders solely to genetic factors. Choice D is incorrect because the model emphasizes the joint contribution of genetic predisposition and environmental stress.

2. 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.

3. What major departure did Freud's position have from prevailing viewpoints around the early 1900s?

A. Viewed abnormal behavior as resulting from biological causes.
B. Viewed people as not fully aware of the forces that control their behavior.
C. Proposed the existence of free will.
D. Emphasized environmental forces on behavior.

Correct answer: B

Rationale: Freud's major departure from prevailing viewpoints around the early 1900s was that he viewed people as not fully aware of the forces that control their behavior. This is reflected in his emphasis on unconscious forces influencing behavior. Choice A is incorrect as Freud focused on psychological rather than solely biological causes. Choice C is incorrect as Freud's theory did not emphasize free will but rather unconscious drives. Choice D is incorrect as Freud emphasized internal psychological forces over external environmental factors.

4. Michael, age 16, has recently gained a considerable amount of weight but has not grown any taller. His father experienced a similar pattern of growth when he was a teenager. Theorists who suggest that Michael’s growth pattern was inherited from his father emphasize the ________ side of the nature-nurture debate?

A. Nature
B. Nurture
C. Environmental
D. Experiential

Correct answer: A

Rationale: The correct answer is 'A: Nature.' In this scenario, the emphasis is on the genetic inheritance of the growth pattern from father to son, highlighting the role of nature in determining physical characteristics. Choice B, 'Nurture,' focuses on environmental influences, which are not the primary factor in this case. Choice C, 'Environmental,' is similar to 'Nurture' and does not address the genetic aspect mentioned. Choice D, 'Experiential,' pertains more to the learning and experiential aspects rather than genetic inheritance, making it an incorrect choice.

5. Which of the following is an appropriate description of a child with conduct disorder?

A. They may argue repeatedly with adults, ignore adult rules and requests, deliberately annoy other people, and feel much anger and resentment
B. They have great difficulty attending to tasks, or behave overactively and impulsively, or both
C. Marked by extreme unresponsiveness to other people, severe communication deficits, and highly rigid and repetitive behaviors, interests, and activities
D. They are often aggressive, deliberately destroy other people's property, steal or lie, skip school, or run away from home

Correct answer: A

Rationale: The correct answer is A. Children with conduct disorder often exhibit behaviors such as arguing with adults, ignoring rules, deliberately annoying others, and displaying anger and resentment. Choice B describes symptoms more characteristic of ADHD (Attention-Deficit/Hyperactivity Disorder). Choice C describes symptoms commonly seen in individuals with autism spectrum disorders. Choice D outlines behaviors associated with oppositional defiant disorder rather than conduct disorder.