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Discuss issues in the classification and diagnosis of schizophrenia (24 marks)

The main tool of measurement to classify and diagnose schizophrenia is the Diagnostic Statistical
Manual (DSM-IV). One issue present is the tool's reliability which refers to the consistency of a
measuring instrument, such as DSM-IV. This can be measured…

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valid for a diagnosis of schizophrenia and found the former to be more valid. However, Bentall et al
(1988) claimed that many of the first-rank symptoms of schizophrenia are also found in other
disorders (such as depression and bipolar). This makes it difficult to separate schizophrenia as a
distinct disorder…

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