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.

Correct Answer: A

Rationale: An acute onset refers to the sudden development of symptoms, whereas an insidious onset indicates a gradual progression of symptoms. Therefore, the correct answer is 'Suddenly;gradually.' The other choices are incorrect because 'atypically' does not accurately describe the onset of symptoms in this context.

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.

Correct Answer: B

Rationale: F. Skinner's views emphasized the importance of observable behavior and dismissed the need to infer unobservable mental states. This aligns with the faculty member's statement that internal states exist but are not essential for understanding behavior. William James, known for his work in functionalism, did consider internal mental states important. Sigmund Freud focused on unconscious motives and internal conflicts. Carl Rogers emphasized the importance of subjective experiences and personal growth, which differs from the faculty member's perspective.

Correct Answer: A

Rationale: The correct answer is A: Personal distress. In this scenario, the student is experiencing personal distress as he feels sad and lonely, despite being able to function in his daily life. Personal distress is a key criterion for determining abnormality as it signifies significant emotional discomfort. Choices B, C, and D are incorrect as cultural factors, impaired functioning, and violation of societal norms are not the primary factors highlighted in the student's situation.