When Should You Consider an Autism Assessment?

Parents often begin considering an assessment when they notice:

• Differences in communication or speech development
• Challenges with social interaction or play
• Strong routines or difficulty with change
• Sensory sensitivities (e.g. noise, textures)
• Emotional regulation differences

If you’re unsure, you might find this guide helpful:
What to Do If You Think Your Child Might Be Autistic

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Who Can Diagnose Autism in Western Australia?

In Australia, autism assessments are typically completed by:

• Clinical Psychologists
• Paediatricians
• Multidisciplinary Teams (e.g. psychologist, speech pathologist, OT)

A psychologist can provide a formal diagnosis, although in some cases (e.g. NDIS or school supports), a multidisciplinary assessment may be recommended.

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Step-by-Step: Autism Assessment Process

Step 1: Initial Concerns & Referral

Most families begin by:

• Speaking with their GP, OR
• Contacting a provider directly

A GP may provide referrals to:

• Paediatricians
• Psychologists
• Allied health professionals

Step 2: Intake & Background Information

Before assessment begins, you’ll usually complete questionnaires about your child, such as:

• Developmental history
• Behaviour and communication
• Daily functioning

Step 3: Standardised Assessment Sessions

Your child will attend structured sessions with a clinician.
These may include:

• Observation-based assessments 
• Cognitive assessments
• Play-based or interaction-based tasks

These sessions are designed to understand how your child communicates, interacts, and responds in different situations.

Step 4: Interviews & Collaboration

​Clinicians may also:

• Speak with parents/caregivers in detail
• Collect information from teachers or daycare (if relevant)

This helps build a complete picture of your child across environments.

Step 5: Scoring, Analysis & Diagnosis

After sessions are completed, clinicians:

• Score assessment tools
• Analyse results
• Compare findings against diagnostic criteria

If your child meets criteria, a diagnosis of Autism Spectrum Disorder (ASD) may be provided.​

Step 6: Report & Feedback Session

You will receive:

• A comprehensive written report
• A feedback session to explain results

​This usually includes:

• Summary of findings
• Diagnosis (if applicable)
• Recommendations for support

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How Long Does the Autism Assessment Process Take?

This can vary, but typically:

• Assessment duration: 2–4 weeks
• Total hours involved: ~12–20 hours depending on complexity

Wait times can vary across Perth and Mandurah.

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How Much Does an Autism Assessment Cost?

Costs can vary depending on the provider and depth of assessment.
Typical ranges:

• Autism assessment: ~$3,000–$4,500
• Belong Health Autism Assessment 
  • Autism Assessment
    Approx. 15 hours total
    $232.99 per hour
    Total: $3,494.85

Funding options may include:

• Medicare rebates 
• Private health insurance 
• Centrelink DSP
  

NDIS generally does not fund diagnostic assessments, but may fund supports after diagnosis.
For more information about our Autism Assessment Process, Costs and Funding information 

Learn More

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Do You Need a Diagnosis Before Starting Support?

No.
Many families begin therapy before receiving a diagnosis.
Support can focus on:

• Communication
• Emotional regulation
• Daily living skills
• Play and social development​

Explore Autism Support Services

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What Happens After a Diagnosis?

After diagnosis, families often:

• Access therapy services (OT, Speech, Psychology)
• Apply for or use NDIS funding
• Work with schools or early learning centres

​Your report will guide the next steps.

Common Questions About Autism Assessments

How early can autism be diagnosed?
Some children can be assessed from around 2 years old, depending on their development and presentation.

Is the assessment stressful for my child?
Assessments are designed to be engaging and child-friendly, often using play-based approaches.

Can my child still get support without a diagnosis?
Yes. Support can begin based on your child’s needs.

Do I need a referral?
Not always, but a referral may be required for certain funding pathways (e.g. Medicare).

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Not Sure If You’re Ready for an Assessment?

That’s completely okay.
Many families start by simply talking things through and understanding their options.

You can start here:

What to Do If You Think Your Child Might Be Autistic

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We’re Here to Help You Navigate the Process

​At Belong Health, we support families across Perth and Mandurah through every stage — from early questions to assessments and ongoing therapy.
Book a free 20-minute call with our team
Or contact us to talk through your situation
Our team is here to help call us on 08 9586 3634 or send us an email here

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Your feedback helps us continue to provide support and information that benefits our community.
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Helping Your Child to Attend and Concentrate
Discover effective strategies to help your child improve attention and concentration at Belong Health. Our expert tips focus on minimising distractions, engaging in enjoyable activities, and using positive reinforcement to enhance your child's focus and learning experience, fostering their development and success.

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How to Become an Emotion Coach for Your Child
Learn how to become an effective Emotion Coach for your child with insights from Dr. John Gottman’s research. Discover parenting strategies that foster emotional understanding and resilience, helping your child navigate their feelings and develop strong communication skills. Empower your parenting journey today!

Have a question? or need more information

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