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

ATI RN

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. What are substances, such as viruses and drugs, that can cause birth defects?

A. Teratogens
B. Placenta
C. Parturition
D. Androgens

Correct answer: A

Rationale: Teratogens are substances that can cause birth defects, especially if exposure occurs during critical periods of development. In this context, teratogens refer to external agents that can interfere with the development of the embryo or fetus, leading to structural or functional abnormalities. Choice B, Placenta, is incorrect as it is an organ that develops during pregnancy to provide nutrients and oxygen to the fetus and remove waste products. Choice C, Parturition, refers to the process of giving birth and is not related to substances that cause birth defects. Choice D, Androgens, are male sex hormones and are not associated with causing birth defects.

3. Which of the following statements is least likely to be made by a humanist?

A. Humans are unique.
B. The behavior of humans tends to be influenced by environmental circumstances.
C. Humans have a basic need to fulfill their potentials.
D. Research on animals has little relevance to understanding human behavior.

Correct answer: B

Rationale: The corrected question assesses the least likely statement made by a humanist. Choice B, 'The behavior of humans tends to be influenced by environmental circumstances,' is least likely to be made by a humanist. Humanists believe that human behavior is not simply dictated by environmental circumstances but is influenced by a combination of factors, including personal experiences, emotions, and conscious decisions. Choices A, C, and D are more aligned with humanist perspectives. Choice A acknowledges the uniqueness of humans, which is a common theme in humanistic psychology. Choice C reflects the humanistic belief that individuals strive to reach their full potential and self-actualization. Choice D contrasts with humanist views as humanists often consider research on animals to be relevant in understanding human behavior due to shared basic psychological processes.

4. Dr. Smythe believes that in order to fully understand complex processes, such as taste, it is necessary to understand the purpose that taste plays in survival, not the elementary components that combine to produce taste sensations. Dr. Smythe's views are most consistent with?

A. The behaviorist approach to psychology.
B. The functionalist approach to psychology.
C. The structuralist approach to psychology.
D. The psychoanalytic approach to psychology.

Correct answer: B

Rationale: Dr. Smythe's belief that understanding the purpose of taste in survival is more critical than focusing on the elementary components aligns with the functionalist approach to psychology. Functionalism emphasizes understanding the purpose or function of mental processes and behavior, rather than just analyzing their individual components. This approach looks at how mental processes help individuals adapt to their environment and survive. Therefore, choices A, C, and D are incorrect because they do not prioritize understanding the purpose of mental processes and behavior in the context of survival.

5. Dr. Haldol has several patients with schizophrenia who appear to exhibit excessive or distorted characteristics in relation to what one might consider normal functioning. Specific symptoms include varied hallucinations and multiple delusions. According to the DSM-5, these are referred to as?

A. Flat affect
B. Positive symptoms
C. Negative symptoms
D. Catatonia

Correct answer: B

Rationale: The correct answer is B: Positive symptoms. Positive symptoms in schizophrenia are behaviors or experiences that are added to normal functioning, such as hallucinations and delusions. These symptoms are considered 'positive' because they represent an excess or distortion of normal functions. Choices A, C, and D are incorrect. Flat affect refers to a reduction in emotional expression, negative symptoms involve deficits in normal functioning such as reduced emotional expression or motivation, and catatonia is a state of unresponsiveness.