Autism Assessments

A diagnosis of an Autism Spectrum Disorder (ASD) requires a team of professionals, all experienced in ASD assessment and diagnosis, to agree on the diagnosis. Therefore, children must be seen by a paediatrician or a Child and Adolescent Psychiatrist, a psychologist and a speech pathologist or occupational therapist. Those professionals then consult together before an outcome is reached. Usually after all the assessments are complete, the child is seen by their paediatrician. At Deirdre Brandner Psychology, we use only GOLD standard tools in the diagnosis of Autism. The assessment is between 4-5 sessions and includes a comprehensive written report which includes a formulation and treatment plan. These are discussed in detail at the feedback session.

Our assessments are tailored to the needs of the child. Your psychologist will discuss which assessments are suitable for your child during session 1. Our comprehensive ASD assessment includes a combination of the following gold standard assessments:


  • Autism Diagnostic Interview – Revised (ADI-R): 1-hour Parent Interview typically takes place in session 1.

  • Autism Diagnostic Observation Schedule (ADOS-2): 1-hour Child Observation / Play session (with child only or parent and child depending on the age of the child).

  • Cognitive Assessment (WISC-V, WPPSI-III): Child only assessment, usually 1 hour (depending on age and language development of child).

  • External setting observation (childcare, kinder, school).

  • Comprehensive feedback session at the conclusion of the assessment (includes 2 copies of our full report

.Medicare rebates for Autism Assessments need to be made by a Paediatrician under the Helping Children with Autism Package (HWCA). GP referrals are not applicable. This referral entitles the child rebates for 4 assessment sessions. If you are undertaking Autism Assessments with another professional (e.g. Speech Pathologist, Occupational Therapist), you may not have access to the full 4 sessions. If you are unsure, check with the other professional or directly with Medicare. Medicare rebates are currently $84.80 per session (or $339.20).


If you are over your Medicare threshold this may increase significantly. This can be checked with Medicare directly. Private Health Rebates may apply – see your health fund for details.