Validity Issues in diagnosis of Schizophrenia

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  • Issues surrounding classification and diagnosis
    • Validity
      • Disorders similar to schizoprenia
        • there are individuals who display symptoms similar to those of schizophreniaBUT don't meet the 'criteria'
          • validity is affected because of these variations
          • blurred boundary between classifications!
      • Dimensional or categorical disorder
        • classifications should relate to the degree at which problems are experienced
          • E.g. may experience hallucinationsbut learnt how to cope and function in life well
      • It is a multiple disorder
        • Individuals diagnosed can present different problems
          • SUGGESTS: no single underlying causal factor
            • individuals respond differently to treatments!
              • SUGGESTS: there is a lack of validity in diagnosis of schizoprenia
      • Hard to distinguish between schizophrenia and seeminglessly unrelated syndromes
      • Cultural Variations
        • Harrison et al (1988)
          • Schizophrenia is diagnosed more frequently in African Americans and African- Caribbean populations
            • misinterpreations of cultural differences as being symptoms of schizophrenia- e.g hearing voices is a spiritual good thing in places like Jamaica.
    • Cultural Variations
      • Harrison et al (1988)
        • Schizophrenia is diagnosed more frequently in African Americans and African- Caribbean populations
          • misinterpreations of cultural differences as being symptoms of schizophrenia- e.g hearing voices is a spiritual good thing in places like Jamaica.
  • SUGGESTS: no single underlying causal factor
    • individuals respond differently to treatments!
      • SUGGESTS: there is a lack of validity in diagnosis of schizoprenia

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