issues in classifying and diagnosing schizophrenia

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research support. Two psychiatrists diagnose 100 people using the DSM and ICD. Psychiatrist one diagnose 26 people using the DSM and 44 with the ICD psychiatrist to diagnose 13 people with the DSM and 24 with the ICD. this shows that not only do psychiatrist not agree on a diagnosis but that the multiple assessment systems used are not measuring the same thing. limitation as it shows poor into reliability and poor criterion validity

however ICDNDSM do you offer recommended treatment plans and help patients recover.

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evidence for the issue of comorbidity comes From Buckley at Al

SZ is highly recommended with depression 50% PTSD 29% and OCD 23%

research from ketter also suggest bipolar has symptom overlap with SZ which may lead to a misdiagnosis

Therefore this suggest individuals with multiple diagnosis may have one incorrectly diagnosed disorder and that in any patient with SZ may get a wrong diagnosis of bipolar in both scenarios the validity of the diagnosis is questioned

However, Serper et al found that it is possible to distinguish between symptoms of multiple disorders and comorbidity does not impact the validity of the diagnosis

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evidence for the issue of gender buyers comes from Lorang and Powell

Randomly selected 290 male and female psychiatrist to read two articles of patient’s behaviour and ask them to offer judgements using standard diagnostic criteria.

research from Harrison at I’ll suggest that those of West Indian origin were over diagnosed with schizophrenia by white doctors in Bristol because of their ethnic background. Suggest that diagnosis is influenced by not only the gender of the patient but also their culture.

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