How Common Are Delusions in Schizophrenia

question 38

Multiple Choice

How common are delusions in schizophrenia?

• A) They are experienced by approximately 50 percent of schizophrenics.
• B) Delusions are an essential feature of schizophrenia; the presence of delusions is required for a diagnosis of schizophrenia.
• C) Over 90 percent of those with schizophrenia experience delusions.
• D) While hallucinations are a common occurrence in schizophrenia, delusions are rare.

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Definitions:

Properties of Sound

Characteristics of sound waves, including frequency, amplitude, and timbre, that determine the pitch, loudness, and quality of sounds.

Brightness

The perception of how luminous an object appears; the intensity of light emitting from or reflecting off its surface.

Perceptual Expectancy

The predisposition to perceive things in a certain way due to previous experiences or assumptions.

Previous Experiences

All the events, knowledge, learning, and personal developments that an individual has encountered prior to the current moment.