IQ assessed as part of ASC assesment

Both my Son and neighbours Son were assessed for ASC my Son age six and received a diagnosis of ASC but no IQ score.. My neighbours Son assessed age 5 or 6 no diagnosis of ASC but an IQ score of 70. Any idea why the two results would be so different? 

Parents
  • Intellectual disability is not in the diagnostic criteria for autism, so is not normally part of an autism assessment. However, intellectual disability is a 'comorbidity' of autism. At present, about 30% of diagnosed autistics have lower than average IQ. If a child was suspected of having both intellectual disability and autism, tests for both conditions would probably be run in tandem.

Reply
  • Intellectual disability is not in the diagnostic criteria for autism, so is not normally part of an autism assessment. However, intellectual disability is a 'comorbidity' of autism. At present, about 30% of diagnosed autistics have lower than average IQ. If a child was suspected of having both intellectual disability and autism, tests for both conditions would probably be run in tandem.

Children
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