Correct Answer: A

Rationale: The correct answer is A: Normative age-graded influence. Normative age-graded influences are events that typically happen to everyone at certain life stages, such as marriage, parenthood, puberty, and menopause. Choice B, 'Social clock,' refers to the culturally preferred timing of social events. Choice C, 'Sensitive period,' represents a time when a particular development occurs most easily. Choice D, 'Normative history-graded influences,' are common to people of a particular generation due to historical circumstances.

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: B

Rationale: The traditional cutoff for diagnosing intellectual disability is an IQ score below 70. An IQ score below 70 is generally considered as the threshold for diagnosing intellectual disability. Choices A, C, and D are incorrect as they do not reflect the commonly accepted cutoff point for diagnosing intellectual disability.

Correct Answer: C

Rationale: The correct answer is C: Humanists. Humanistic psychologists emphasize individual uniqueness, freedom, and the potential for personal growth. They believe in the importance of personal experiences and self-actualization. Behaviorists (choice A) focus on observable behaviors and environmental influences. Psychoanalysts (choice B) are more concerned with unconscious processes and early childhood experiences. Gestalt psychologists (choice D) concentrate on perception and the organization of experience, rather than individual uniqueness and personal growth.

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.