This is an initial assessment to help establish whether it is appropriate for the individual to undergo a full diagnostic assessment. This usually comprises of an initial appointment with parents/carers lasting up to 1.5 hours during which a history of difficulties will be taken and screening measures administered. Following this, we will discuss whether there are enough concerns associated with ASD to warrant full diagnostic testing. If so, you will then need to confirm whether you wish to proceed to Part 2 (diagnostic assessment).

Part 2 usually comprises of several home or clinic-based appointments where standardised tests are completed, including the ADOS-2 (Autism Diagnostic Observation Schedule – 2nd edition) which is well established as part of the ‘gold standard’ method of diagnosing autism. Additional assessments often include: administration of the ADI-R (Autism Diagnostic Interview - Revised) to family members; analysis of assessment data and other reports; and school-based observations (in the case of child clients). The process will involve more than one professional so that they can concur on a diagnosis. Assessments are paced to the individual and rest breaks will be given where needed.

Following completion of the assessments, the results will be analysed and a comprehensive report (detailing the findings of all the different aspects of the assessment and confirming the diagnostic outcome) will be written. We will meet again where you will have the opportunity to discuss the outcome and ask any questions you may have.

Recommendations may take the form of strategies for everyday living, which may be implemented by the person themselves, family and carers, schools, college, universities or work, etc. Where emotional difficulties are present, further intervention may take place in the form of psychological therapies . Sometimes, ADHD might be identified as another relevant diagnosis for consideration.