Issues of reliabilty and validity 0.0 / 5 ? PsychologySchizophreniaA2/A-levelAQA Created by: chevytardis67Created on: 13-06-15 13:07 42375189610 Across 1. Found people with DID have more schizophrenia symptoms than those with schizophrenia. Raises issues with comorbidity so hard to tret as diagnosis is unreliable (7, 3, 4) 4. Developed a first rank system that he believed distinguished schizophrenia from other disorders. (8) 5. DSM validity low due to patients being heterogenous (6) 6. Normal people presented themselves to psychiatric hospitals in US, claiming they heard an unfamiluar voice in their head. All diagnosed with schizohprenia and admitted. None of staff recognised that they were normal. (8) 9. Extent to which psychiatrists can agree on the same diagnosis. DSM 3 claims to increase __________ of diagnosis. (11) 10. 50 senior psychiatrist in US. Asked to differentiaite between 'bizarre' and 'non-bizarre' behaviour. Inter-rater reliabilty of 40% (7) Down 2. Gave description of patient to 134 US and 194 British psychiatrists. 69% of US psychiatrists diagnosed schizophrenia, but only 2% British psychiatrists gave same diagnosis (8, 2, 2) 3. Inter-rate reliability as low as 11%. Diagnosis in inconsitant. DSM unreliable in accuratley and consistantly diagnosis schizophrenia (6) 7. Reductionist. Social bias. Cultural bias. Ethics. Idographic approach. (4) 8. Follow up study. Warned hospitals that he was going to send out pseudo patients. 21% detection rate, but no pseudo patients sent (8)
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