Correct Answer: C

Rationale: The correct answer is C: Reference. A delusion of reference is when an individual believes that external events or characters are sending them personal messages. In this scenario, David's belief that characters from the science fiction show are sending him messages aligns with a delusion of reference. Choices A, B, and D are incorrect because persecution delusions involve feeling targeted or harassed, influence delusions involve believing external forces are controlling one's thoughts or actions, and grandeur delusions involve an exaggerated sense of importance or power.

Correct Answer: C

Rationale: The correct diagnosis for Roger's condition is Broca's aphasia. Broca's aphasia is characterized by difficulty in speaking fluently and accurately, often due to brain injury. In this case, Roger's symptoms of being unable to speak fluently, mispronouncing words, and speaking haltingly align with the characteristics of Broca's aphasia. Agnosia refers to the inability to recognize or interpret sensory information, spatial neglect is the lack of awareness of one side of the body or space, and prosopagnosia is the inability to recognize faces, none of which match Roger's symptoms.

Correct Answer: D

Rationale: The correct answer is D because in an experimental design, investigators manipulate variables to determine the effect of one on another. This process allows researchers to test causal hypotheses by manipulating one variable while keeping others constant. Choices A, B, and C are incorrect as they do not directly relate to manipulating variables in an experiment.

Correct Answer: D

Rationale: The cognitive perspective might best explain Elliot's irrational thinking and resulting depression. In this case, Elliot's belief that he will never be loved again is a cognitive distortion, leading to depressive symptoms and social withdrawal. The psychodynamic perspective primarily focuses on unconscious processes and unresolved conflicts from the past, which do not directly address Elliot's current cognitive distortions. The behavioral perspective would focus on observable behaviors and how they are reinforced, which is not the central issue in this scenario. The biological perspective would examine the role of genetics, brain chemistry, and other physiological factors, which are not the primary cause of Elliot's behavior in this context.

Correct Answer: B

Rationale: The cognitive perspective emphasizes understanding human behavior by focusing on internal mental events such as thoughts, beliefs, and perceptions. This helps in explaining how individuals process information, solve problems, and make decisions. Choice A, the role of the unconscious, is associated with psychoanalytic theory rather than the cognitive perspective. Choice C, the interrelations among the mind, body, and behavior, is more aligned with a holistic or biopsychosocial perspective. Choice D, the adaptive value of a behavior, is more related to evolutionary psychology rather than the cognitive perspective.