Combined Autism & ADHD Assessments
Comprehensive Dual Diagnostic Assessments

​Belong Health offers combined Autism and ADHD assessments conducted by a Clinical Psychologist using structured, evidence-based assessment processes.

​These assessments are designed to explore both Autism Spectrum Disorder (ASD) and Attention-Deficit/Hyperactivity Disorder (ADHD) together, providing a more complete understanding where there may be overlapping or complex presentations.

Our Clinical Psychologist services the Peel region (including Mandurah and surrounding areas) and Rockingham and nearby suburbs (within approximately 35 km), with both clinic-based and community assessment options available.

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When a Combined Assessment May Be Helpful

A combined assessment may be recommended when there are concerns across both areas, such as:
• Attention, focus, and impulsivity difficulties
• Social communication differences
• Sensory sensitivities
• Behaviour and emotional regulation challenges
• Difficulties at school, home, or in daily life
• Complex or unclear presentation where more than one condition may be present

Assessing both areas together can help ensure a more accurate and comprehensive understanding.

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Why Assess Autism and ADHD Together?

Autism and ADHD can share overlapping features, including:
• Attention difficulties
• Social challenges
• Emotional regulation differences
• Executive functioning difficulties

A combined assessment allows the psychologist to:
• Differentiate between presentations
• Identify co-occurring conditions
• Understand how different factors interact
• Provide more targeted recommendations

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Assessment Tools Used

Your assessment may include a combination of:
• ADOS-2 (Autism Diagnostic Observation Schedule)
• Conners-4 (Parent & Teacher Questionnaires)
• SRS-2 (Parent & Teacher Questionnaires)
• WISC-V (Cognitive Assessment)
• ABAS-3 (Adaptive Functioning)
• Learning & Behaviour Questionnaires
• Clinical interviews and observation

Using multiple tools allows for a comprehensive, multi-source assessment.

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Assessment Process

1. Referral or enquiry received
2. Reviewed by Clinical Psychologist (accepted or alternative recommendations provided)
3. Parent and teacher questionnaires issued
4. Assessment session scheduled (including WISC-V where appropriate)
5. Parent interview conducted
6. ADOS-2 assessment completed (in clinic)
7. Scoring, interpretation, and report writing
8. Feedback session provided (child may attend for part of session)

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Timeframes

​Timeframes vary depending on complexity and return of questionnaires.

Typical timeframe:
• Combined Autism & ADHD Assessment: approximately 3–4 weeks from assessment to feedback

More complex presentations may take longer.

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What the Report Includes

• Summary of referral concerns
• Developmental and background history
• Results from all assessment tools
• Clinical interpretation
• Consideration of DSM-5-TR diagnostic criteria for both Autism and ADHD
• Strengths and areas of difference
• Practical recommendations for home and school

A feedback session is provided to explain the results and answer questions.

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Who Can Diagnose Autism and ADHD?

Assessments are conducted by a Clinical Psychologist, who is qualified to assess and diagnose both Autism Spectrum Disorder and ADHD.

For ADHD, if medication is being considered, families will need to take the report to a paediatrician or psychiatrist, as psychologists do not prescribe medication.

In some cases, services such as the NDIS or schools may request multidisciplinary confirmation for Autism diagnoses.

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Important Information

​• Diagnosis is made only where criteria are met
• Information is gathered across multiple settings (home and school)
• Assessments are tailored to the individual
• Reports support understanding and planning but do not guarantee funding outcomes

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​Not Sure Whether a Comprehensive Autism & ADHD Assessment Is the Right Next Step?

Belong Health also offers a Combined Autism & ADHD Screening Assessment with our Clinical Psychologist for individuals who may be experiencing overlapping Autism and ADHD traits.
Autism and ADHD can co-occur, and many individuals experience a combination of:
• Attention and executive functioning difficulties
• Social communication differences
• Sensory sensitivities
• Emotional regulation challenges
• Difficulties with routines, organisation, or daily functioning
This screening process is designed to help identify whether Autism and/or ADHD-related traits may be present and whether a more comprehensive combined assessment may be appropriate.

Combined Autism & ADHD Screening Assessment
The Combined Screening Assessment may include:
• Learning and Behaviour Questionnaire
• Adaptive Behaviour Assessment System - Third Edition (ABAS-3)
• Social Responsiveness Scale - Second Edition (SRS-2)
• Conners-4 Questionnaires where appropriate
• Clinical review and interpretation by the Clinical Psychologist
The screening process explores:
• Social communication and interaction
• Attention and concentration
• Executive functioning
• Emotional regulation
• Sensory differences
• Behaviour and adaptive functioning
• Autism and ADHD-related traits and patterns

Important Information About Screening Assessments
• Screening assessments are not designed to replace a comprehensive Autism & ADHD assessment
• Screening assessments may help identify whether further assessment is recommended
• A screening assessment alone may not be sufficient for formal diagnosis, NDIS applications, workplace or school adjustments, or medication pathways
• Recommendations for next steps will be provided following review of the screening results


Who May Benefit From a Combined Screening Assessment?
A Combined Autism & ADHD Screening Assessment may be helpful for individuals who:
• Experience both social communication and attention difficulties
• Have sensory sensitivities alongside executive functioning challenges
• Struggle with organisation, routines, or emotional regulation
• Have been wondering whether Autism and ADHD may both be contributing to their experiences
• Have a child or family member recently diagnosed with Autism or ADHD
• Want guidance regarding whether a comprehensive combined assessment may be appropriate

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Fees & Funding
We aim to provide clear and transparent information so families can plan assessments with confidence.
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​Screening Fees

ADHD Screening: 3 hours:  $ 750
Autism Screening: 3 hours: $ 750
Combined ADHD & Autism Screening: 5 hours: $1,190
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Assessment Fees
All assessments include clinical interviews, standardised assessments, scoring, interpretation, a comprehensive written report, and a feedback session.

Combined ADHD & Autism Assessment
Combined ADHD and Autism Assessment - Adult $4,490
Combined ADHD and Autism Assessment - Child $4,690​
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Medicare (Mental Health Treatment Plan)
If you have a referral from your GP under a Mental Health Treatment Plan, you may be eligible for Medicare rebates for up to 10 individual psychology sessions per calendar year.

Clinical Psychologist rebate: approximately $136.35 per session

How Medicare applies to assessments
Medicare rebates apply to eligible face-to-face sessions that involve:
• Assessment sessions
• Clinical interviews
• Feedback and recommendations

​Medicare does not fund assessments as a packaged service. Rebates are applied per session attended.
Time spent on scoring, interpretation, and report writing is included in the overall fee but is not claimable through Medicare.

​Autism-Specific Medicare Pathway (Under 13)
For children under 13, a paediatrician or psychiatrist may refer for assessment of a complex neurodevelopmental condition (including autism).
This may allow access to:
• Up to 4 allied health assessment sessions
• Rebates of approximately $84–$150 per session
Eligibility depends on specialist referral.

Centrelink (Disability Support Pension - DSP)

A psychology assessment may be used as supporting medical evidence for Centrelink Disability Support Pension (DSP) applications.
Centrelink requires documentation from qualified health professionals, which can include a Clinical Psychologist. Our assessment reports include detailed information about:
• Assessment results
• Clinical interpretation
• Functional impact in daily life
• Recommendations

This information may assist in supporting a DSP application.

​Important to know:
• A psychology assessment is one part of the overall evidence required
• Centrelink assesses applications based on specific criteria, including diagnosis, functional impact, and ability to work
• Additional documentation (e.g. GP or specialist reports) is usually required
• DSP approval is not guaranteed based on one report alone

​DSP is available for individuals aged 16 years and over. For children under 16, families may instead access supports through the NDIS or carer payments.
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Private Health Insurance
Depending on your extras cover, you may be eligible for psychology rebates.

Typical rebates range from:
• $50–$120 per session

Please note:
• Medicare and private health rebates cannot be claimed for the same session
• Some families choose to use Medicare rebates first, then private health for additional sessions

​We recommend checking directly with your insurer for details of your cover.

NDIS
The NDIS does not fund diagnostic assessments.
However, funding may be used for:
• Functional assessments
• Therapy supports
Diagnosis is typically completed outside of NDIS funding.

Payment Information
To support a smooth assessment process:
• Payment is required on the day of each session
• Progression to the next stage occurs once previous sessions are finalised

​We will outline the assessment schedule in advance so you know what to expect.

Planning Your Costs
Families often use a combination of:
• Medicare rebates
• Private health rebates
• Private payment

We are happy to talk this through with you so you can choose an approach that suits your family.

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Signs a Combined Assessment May Be Helpful

​• Difficulties with both attention and social interaction
• Challenges across multiple areas (learning, behaviour, communication)
• Mixed or unclear presentation
• Previous assessments that have not fully explained concerns

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Not Sure If a Combined ASD & ADHD Assessment Is Right?

​If you’re unsure whether a combined assessment is appropriate, our team can help guide you based on your concerns.
​Call us on 08 9586 3934 or send us an email here

free 20min connect Session
with our clinical psychologist

If you’re unsure whether an assessment is the right next step, we offer a Free 20-minute Meet & Greet call with our Clinical Psychologist.

Book Now

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When to Consider Occupational Therapy Instead

​You may wish to consider an Occupational Therapy Cognitive Assessment if your focus is on:
• Everyday functioning and independence
• Memory or attention in daily tasks
• Functional Capacity Assessments (NDIS)

Learn More

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Frequently Asked Questions - Combined ADHD & Autism Psychology Assessment

How do I know which assessment my child needs?
It’s very common to feel unsure. Different assessments explore areas such as learning, attention, behaviour, emotional regulation, executive functioning, social communication, and Autism-related traits. Our team can help guide you toward the most appropriate assessment based on your concerns and goals.

Can you assess for both Autism and ADHD at the same time?
Yes. A combined Autism and ADHD assessment may be recommended where there are overlapping concerns or traits. This allows the psychologist to explore both areas together and develop a more complete understanding of the individual’s presentation.

How long does the assessment process take?
Timeframes vary depending on the assessment type, complexity, and how quickly questionnaires are returned.
Typical timeframes may include:

• ADHD Assessment: 1-2 weeks
• Autism Assessment: 2-3 weeks
• Combined Assessment: 3-4 weeks
• Learning/Cognitive Assessments: 1-2 weeks

More complex presentations may take longer.

How many sessions are involved?
Assessments are completed across multiple components, which may include questionnaires, interviews, assessment sessions, scoring, report writing, and feedback appointments.
Approximate total assessment time may include:

• ADHD Assessment: approximately 12 hours
• Autism Assessment: approximately 15 hours
• Combined Assessment: approximately 20 hours

Can a Clinical Psychologist diagnose Autism and ADHD?
Yes. Clinical Psychologists are qualified to assess and diagnose Autism Spectrum Disorder (ASD) and ADHD using evidence-based assessment processes.

Do I need to see a paediatrician as well?
Not always. However, if ADHD medication is being considered, a paediatrician or psychiatrist is required because psychologists do not prescribe medication.
For Autism, a psychologist’s diagnosis is often sufficient, although some services or systems may request multidisciplinary input in certain situations.

What happens if my child is diagnosed with ADHD?
If medication is being considered, families may take the report to a paediatrician or psychiatrist to discuss medication options.
If medication is not being considered, the report and recommendations may still help guide supports at home, school, therapy, and daily life.

What happens after the assessment?
Following the assessment:

• A comprehensive report is provided
• A feedback session is completed
• Recommendations are discussed
• Strategies and support recommendations may be explored

Reports may assist with planning across home, school, therapy, or other support environments.

Are these assessments covered by Medicare?
Medicare rebates may be available for eligible sessions under relevant referral pathways or Mental Health Treatment Plans.
However:

• Rebates apply per session rather than as a full package
• Report writing and scoring are generally not claimable

Our team can help explain how this may apply to your situation.

Can I use NDIS funding for these assessments?
The NDIS generally does not fund diagnostic assessments.
However, funding may sometimes be used for:

• Functional assessments
• Therapy-related supports
• Capacity-building supports

depending on the participant’s plan and goals.

Do you offer payment plans?
Payment structures are discussed before assessment commencement so families and individuals can plan accordingly.

What if my child is anxious or struggles with assessments?
This is very common. Assessments are completed in a flexible and supportive way, and the psychologist adapts sessions to suit the individual’s pace, communication style, and support needs.
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What if I’m not sure whether to proceed?
That’s completely okay. Our team can help guide you based on your concerns, goals, and the type of information or support you are seeking.

Areas We Service ​
​Our Clinical Psychologist based in Rockingham, Western Australia, provides Psychology Assessments to clients across the South of Perth to Mandurah suburbs and surrounding areas.

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Anketell
Atwell
Baldivis
Banjup
Barragup
Bertram
Bibra Lake
Bouvard
Calista
Casuarina
Clifton
Cockburn Central
Coogee

Coolbellup
Cooloongup
Dawesville
Dudley Park
East Rockingham
Erskine
Falcon
Furnissdale
Garden Island
Golden Bay
Greenfields
Halls Head
Hamel

Hamilton Hill
Hammond Park
Herron
Hope Valley
Hopeland
Jandakot
Karnup
Keralup
Kwinana Beach
Kwinana Town Centre
Lakelands
Leda

Madora Bay
Mandogalup
Mandurah
Meadow Springs
Medina
Nambeelup
Naval Base
North Coogee
North Dandalup
Oakford
Orelia
Parklands
Parmelia

Peron
Pinjarra
Port Kennedy
Postans
Ravenswood
Rockingham
Safety Bay
San Remo
Secret Harbour
Serpentine
Shoalwater
Silver Sands
Singleton

South Lake
South Yunderup
Spearwood
Stake Hill
Success
The Spectacles
Wandi
Wannanup
Warnbro
Wattleup
Wellard
West Pinjarra
Yangebup

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 To secure your spot, please fill out the our enquiry form or phone us ​

Enquire Now

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Belong Health's Resource Hub
To further support your child's development, visit our Resource Hub for additional activities, tips, and tools tailored for various needs and diagnoses.
Below are our Child Psychology Free Resources

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Home Therapy Packs
At Belong Health, we are dedicated to providing tailored support that meets the unique needs of each child. Developed by our Paediatric Occupational Therapists, our Home Therapy Packs are specifically designed to align with NDIS goals, offering flexible, practical, and engaging activities for children at home.
To further enhance your approach, consider our Home Therapy Packs, specifically designed to support communication development at home.

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