reliability

• reliability refers to the consistency of diagnosis
• in schiz reliability refers to how consistent a diagnosis can be found between inter-rater reliability
• Beck et al reported a 54% concordance rate between practitioners diagnoses when assessing 153 patients
• inter-rater reliability is low
• The high comorbidity rate given by Buckley (2009) of 23% suggests that the co-occurrence of OCD and schizophrenia is not due to chance