Nancy Andreasen Has Proposed a Classification Scheme for Schizophrenia That

question 89

Multiple Choice

Nancy Andreasen has proposed a classification scheme for schizophrenia that divides schizophrenic disorders into two categories,based on the predominance of negative versus positive symptoms.Results from research studies which have investigated this method of classification suggest that most patients

• A) exhibit mainly positive symptoms.
• B) alternate between positive and negative symptoms.
• C) exhibit mainly negative symptoms.
• D) exhibit both types of symptoms.

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Definitions:

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment, allowing for a comparison to assess the effect of the treatment.

Operationalization

The process of defining measurement criteria for abstract concepts to enable their empirical, quantitative measurement.

Abstract Concept

A theoretical idea that is not associated with any specific physical object or real entity, often requiring complex thought and understanding.

Testable Variable

An element or factor in a scientific experiment that can be altered and measured to determine its effects on the outcome.