Resourcd File

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Resourcd File

  1. 1. Discuss issues surrounding the classification and diagnosis of schizophrenia. (8 + 16 marks) AO1 – issue 1 Reliability = the consistency of the measuring instrument. Inter-rater reliability = Carson claims that AO2 – evaluation of issue What did Whaley find? How does this support or reject the issue? AO2 – evaluation of issue What did Copeland find? How does this support or reject the issue? AO1 – issue 2 Test-retest reliability = Wilks et al found AO2 – evaluation of the issue What issues of reliability does Rosenhan’s study demonstrate? AO2 – evaluation of the issue What did Prescott et al find? How does this support or reject the issue?
  2. 2. AO1 – issue 3 Validity = does the diagnosis represent something real and distinct and measure what it claims to. Comorbidity = Buckley found AO2 – evaluation of the issue What did Weber et al find? How does this support or reject the issue? AO2 – evaluation of the issue What did Kessler et al find? How does this support or reject the issue? AO1 – issue 4 Predictive validity = AO2 – evaluation of the issue Bentall et al found How does this support or reject the issue? AO2 – Ethnicity may also impact diagnosis…… What did Harrison find? How can this be linked to validity and reliability?

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