Clinical diagnoses of autism can vary greatly across centers widely Archives of General Psychiatry study suggests common diagnostic subcategories like asperger syndrome are flawed and questionable valueTo diagnose autism spectrum disorders, clinicians typically administer a number of testing or scales and make use of details from observations and parent interviews to classify people into subcategories listed in regular psychiatric diagnostic manuals . This process of forming ‘best-estimate clinical diagnoses’ is definitely considered the gold standard, but a fresh study demonstrates these diagnoses are broadly variable across centers, suggesting that this may not be the greatest way for making diagnoses.