Receiving an autism diagnosis can be transformative for individuals and families. Our experienced psychologists specialise in autism assessment across all age groups, from early childhood through adulthood. We understand that autism presents differently in each person, which is why our comprehensive evaluation considers the full spectrum of autism presentations, including those often missed in traditional assessments.

Ages 6 to Adult | Detailed Reports for Schools, NDIS & Healthcare Providers

Why Choose Mind Health for Autism Assessment?

Gold-Standard Assessment Tools

We use internationally recognised diagnostic tools including the ADOS-2 (Autism Diagnostic Observation Schedule) and ADI-R (Autism Diagnostic Interview-Revised). Additionally, we incorporate the innovative MIGDAS-2 (Monteiro Interview Guidelines), a sensory-based, neuroaffirmative assessment approach that creates authentic, comfortable evaluation experiences while highlighting individual strengths.

Our Comprehensive Assessment Battery:

• ADOS-2 (Autism Diagnostic Observation Schedule-2)
• ADI-R (Autism Diagnostic Interview-Revised)
• MIGDAS-2 (Monteiro Interview Guidelines – sensory-based, strengths-focused)
• 3Di (Developmental, Dimensional and Diagnostic Interview)
• CARS-2 (Childhood Autism Rating Scale-2)
• SRS-2 (Social Responsiveness Scale-2)
• GARS-3 (Gilliam Autism Rating Scale-3)
• SCQ (Social Communication Questionnaire)
• Cognitive assessment (WISC-V, WAIS-IV, or developmental scales)

Autism-Specialised Clinicians

Our AHPRA registered psychologists have extensive training in autism assessment and intervention. We understand the nuances of autism presentation across different ages, genders, and cultural backgrounds, including recognising autism in girls and women who may present differently than traditional diagnostic criteria.

Comprehensive Developmental Focus

Every assessment includes detailed developmental history, cognitive evaluation, adaptive functioning assessment, and sensory processing evaluation. We consider co-occurring conditions and provide recommendations that address the whole person, not just the autism diagnosis.

Understanding Autism Spectrum Disorder

Autism Spectrum Disorder is a neurodevelopmental condition characterised by differences in social communication, interaction patterns, and the presence of restricted, repetitive behaviours or interests. The term “spectrum” reflects the wide variation in challenges and strengths each autistic person experiences.

Core Features of Autism:

Social Communication & Interaction Differences

• Challenges with social-emotional reciprocity
• Differences in nonverbal communication
• Difficulties developing and maintaining relationships

Restricted & Repetitive Behaviours

• Repetitive motor movements or speech
• Strong preference for routines and rituals
• Highly focused special interests
• Sensory sensitivities or differences

The Autism Spectrum Autism affects individuals differently. Some autistic people require substantial daily support, while others live independently and may not be diagnosed until adulthood. Many have exceptional abilities in specific areas, and all deserve understanding and appropriate support tailored to their unique strengths and challenges.

Our Comprehensive Assessment Process

Phase 1: Initial Consultation & Developmental History (60-120 minutes)

We begin with an extensive clinical interview exploring developmental milestones, current concerns, and family history. Parents, carers, or the individual provide detailed information about early development, current functioning, and specific areas of difficulty or strength. This initial phase helps our clinicians determine the most appropriate assessment tools for your unique situation.

Developmental History Components:

• Early social and communication development
• Play patterns and social interaction preferences
• Sensory processing patterns and preferences
• Behavioural patterns and special interests
• Academic or work functioning
• Adaptive daily living skills

Phase 2: Tailored Diagnostic Assessment (2-4 hours)

Based on your individual presentation, age, and specific needs, our clinicians select the most appropriate combination of gold-standard diagnostic tools:

• ADOS-2 (Autism Diagnostic Observation Schedule-2)
  Selected for clients who can engage in structured interactive tasks. Provides standardised observational data through play-based or conversation-based activities. Most suitable for:

  • Children who can engage in basic play or interaction

  • Adolescents and adults with verbal communication

  • When standardised comparison data is needed for diagnosis

• ADI-R (Autism Diagnostic Interview-Revised)
  Chosen when comprehensive developmental history is crucial for diagnosis. This detailed interview with parents/carers focuses on early development patterns. Most appropriate for:
  • Cases requiring extensive developmental history
  • When early childhood information is available
  • Complex presentations needing detailed background
• MIGDAS-2 (Monteiro Interview Guidelines)
  Selected when a neuroaffirmative, strengths-based approach will provide the best assessment experience. Uses sensory materials and follows individual interests. Particularly valuable for:
  • Individuals who may not perform well in structured testing
  • When previous assessments have been difficult or inconclusive
  • Clients who benefit from sensory-based, comfortable assessment environments
  • Cases where strengths-based profiling is prioritised

Supplementary Tools (as clinically indicated):

• CARS-2, SRS-2, GARS-3, SCQ for additional behavioural perspectives
• Sensory Profile 2 for detailed sensory processing assessment
• Language assessments when communication differences are prominent

Phase 3 (if required): Cognitive & Developmental Assessment (2 hours)

Cognitive testing may provide crucial context for understanding autism presentation and identifying individual strengths and challenges.

Assessment Components:

• Full cognitive evaluation using appropriate tools for age and ability
• Language and communication assessment
• Executive function evaluation
• Academic achievement testing (when relevant)
• Adaptive behaviour assessment (if required)

Phase 4: Collateral Information & Integration

We gather information from multiple sources including school reports, teacher observations, and other healthcare providers. When appropriate, we may conduct school or workplace observations to understand functioning in natural environments.

Our Clinical Decision-Making Process: Our experienced clinicians select assessment tools based on individual factors including age, communication level, previous assessment experiences, cultural background, and specific referral questions. This tailored approach ensures each person receives the most appropriate and effective evaluation for their unique needs.

Who Should Consider Autism Assessment?

Early Childhood (18 months – 5 years)

Early identification leads to better outcomes. We specialise in early developmental assessment and intervention planning.

Early Signs May Include:

• Limited or unusual social smiling and engagement
• Delayed or different language development patterns
• Repetitive movements or intense focus on specific objects
• Unusual sensory responses or strong sensory preferences
• Difficulty with changes in routine or environment

School-Age Children (6-17 years)

School settings often highlight social communication differences and learning challenges. Assessment helps distinguish autism from other conditions and ensures appropriate educational support.

School-Age Indicators:

• Social difficulties with peers or adults
• Intense special interests that may interfere with learning
• Sensory challenges in classroom environments
• Difficulty with transitions or unexpected changes
• Academic abilities that don’t match social functioning

Adults (18+ years)

Many adults, particularly women, receive their first autism diagnosis later in life. Adult assessment focuses on current functioning, life challenges, and accessing appropriate support services.

Adult Assessment Considerations:

• Chronic social or relationship difficulties
• Employment challenges despite adequate skills
• Sensory overwhelm in daily environments
• Masking or camouflaging behaviours leading to exhaustion
• Recognition of autism traits after child’s diagnosis

Autism Assessment for NDIS Participants

Autism often qualifies for NDIS support, particularly when it impacts daily functioning, social participation, and requires ongoing therapeutic intervention. Our assessments provide comprehensive evidence for NDIS applications and plan reviews.

NDIS Eligibility for Autism

Autism can qualify for NDIS when it:

• Significantly impacts daily functioning and independence
• Requires substantial ongoing support for community participation
• Benefits from capacity building and therapeutic interventions
• Is a permanent condition requiring lifelong consideration

NDIS Funding Categories:

• Early Childhood Supports (0-9 years) – Specialised early intervention
• Improved Daily Living (Category 15) – Capacity building supports
• Improved Relationships (Category 16) – Social skills development
• CB Daily Activities (Category 07) – Ongoing support and supervision

NDIS Assessment Features:

• Functional capacity assessment specific to NDIS requirements
• Adaptive behaviour and daily living skills evaluation
• Social participation and community access assessment
• Support needs identification across all life domains
• Evidence-based intervention recommendations

No out-of-pocket costs for eligible NDIS participants with appropriate funding categories.

Assessment Tools & Differential Diagnosis

Neuroaffirmative Assessment Approach

MIGDAS-2 (Monteiro Interview Guidelines for Diagnosing the Autism Spectrum) We’re proud to incorporate the MIGDAS-2, a revolutionary sensory-based assessment that represents a paradigm shift towards neuroaffirmative autism evaluation. Unlike traditional standardised tests, the MIGDAS-2 follows the individual’s lead, using sensory materials and focusing on areas of personal interest to create an authentic, comfortable assessment experience.

Why MIGDAS-2 Enhances Our Assessment:

• Strengths-based approach highlighting individual abilities and potential
• Sensory-focused methodology using materials that engage natural interests
• Neuroaffirmative perspective respecting autistic ways of being
• Comprehensive behavioural profiles describing unique ways of relating to the world
• Cultural sensitivity avoiding biases across different backgrounds
• All ages and abilities from toddlers to adults, including limited verbal fluency

The MIGDAS-2 complements our ADOS-2 and ADI-R assessments by providing rich qualitative insights that inform both diagnosis and intervention planning. This approach ensures our assessment process is not only thorough but also respectful and validating of each individual’s neurological differences.

Comprehensive Assessment Battery

Gold-Standard Diagnostic Tools:

• ADOS-2 – Autism Diagnostic Observation Schedule (latest version)
• ADI-R – Autism Diagnostic Interview-Revised (comprehensive history)
• MIGDAS-2 – Monteiro Interview Guidelines for Diagnosing the Autism Spectrum (sensory-based, neuroaffirmative)
• 3Di – Developmental, Dimensional and Diagnostic Interview

Supplementary Rating Scales:

• CARS-2 – Childhood Autism Rating Scale (behavioural observations)
• SRS-2 – Social Responsiveness Scale (social behaviour patterns)
• GARS-3 – Gilliam Autism Rating Scale (autism characteristics)
• SCQ – Social Communication Questionnaire (screening and history)
• RBS-R – Repetitive Behavior Scale-Revised

Cognitive & Developmental Assessment:

• WISC-V (children) / WAIS-IV (adults) – Cognitive abilities
• Mullen Scales or Bayley-4 (early childhood development)
• VABS-3 – Vineland Adaptive Behavior Scales
• PLS-5 or CELF-5 – Language assessment
• Sensory Profile 2 – Sensory processing patterns

Conditions We Screen For:

Autism assessment requires careful consideration of other conditions that may present with similar features:

Developmental & Neurological:

• ADHD – Often co-occurs with autism
• Learning difficulties – Language and academic challenges
• Intellectual disability – Cognitive development assessment
• Global developmental delay
• Fragile X syndrome and genetic conditions

Mental Health & Behavioural:

• Anxiety disorders – Common co-occurrence
• Selective mutism
• Trauma responses – Can mimic autism features
• Attachment disorders
• Behavioural disorders

Communication & Sensory:

• Speech and language disorders
• Hearing impairments
• Visual processing difficulties
• Sensory processing disorder

Preparing for Your Autism Assessment

Before Your Assessment:

• Complete detailed developmental questionnaires
• Gather early childhood photos and videos showing social interaction
• Collect school reports, previous assessments, and medical records
• Prepare list of current concerns and strengths
• Arrange for primary carer to attend ADI-R interview

What to Bring:

• Photo ID and Medicare card/NDIS plan
• Completed pre-assessment questionnaires
• Early childhood development records and photos
• School reports and previous assessment results
• Current medication list and medical history
• Comfort items for individual being assessed

Assessment Environment:

We maintain autism-friendly assessment spaces with minimal sensory distractions, comfortable seating options, and flexibility to accommodate individual needs. Sessions can be scheduled across multiple days if needed to reduce fatigue and optimise performance.

What to Expect During Assessment

Day 1: Interviews & History (1-2 hours)

Initial consultation with family followed by ADI-R structured interview. This comprehensive process explores developmental history across all areas of functioning from early childhood to present.

Day 2: Cognitive & Observational Assessment (4-5 hours)

Cognitive testing appropriate for age and ability level, followed by ADOS-2 observational assessment and MIGDAS-2 sensory-based interview. Regular breaks provided, and sessions adapted to individual needs and comfort levels.

Day 3: Additional Testing & Review (2-3 hours)

Supplementary assessments as needed, review of collateral information, and preliminary results discussion. Timeline flexible based on individual needs and assessment complexity.

Results & Report Delivery

Comprehensive diagnostic report completed within 10 business days, including detailed recommendations for intervention, education, and support services. Follow-up consultation scheduled to discuss findings and next steps.

Pricing & Payment Options

NDIS Participants

No out-of-pocket costs with appropriate funding categories:

• Assessment services: $232.99 per hour (NDIS Code: 15_056_0128_6_3)
• Total assessment: typically $2,600 (10 hours across multiple sessions)

Private Clients

Comprehensive Autism Assessment Package: $2,600

Package Includes:

• Initial consultation and developmental history (1-2 hours)
• Full cognitive assessment (2 hours)
• ADOS-2 observational assessment (90 minutes) and/or
• MIGDAS-2 sensory-based interview (90 minutes) and/or
• ADI-R structured interview (2-3 hours)
• Supplementary rating scales and questionnaires
• Comprehensive diagnostic report 
• Results discussion and recommendations session
• School/healthcare provider/NDIS letters
• Resource recommendations and referrals

Payment Options:

• Min. 50% paid to secure booking
• Full payment require for release of report
• Payment plans may be available (ask reception)
• Private health insurance rebates may apply
• Talk to your NDIS provider about financial assistance

Additional Services:

• School observation and report: $990
• Court appearance or expert witness: Quote on application
• Follow-up consultations: $260 per session
• Assessment updates or addendums: $330/hour

After Your Autism Assessment

Immediate Support

Following diagnosis, we provide comprehensive resource lists, referral recommendations, and guidance on next steps. This includes information about local autism support groups, intervention options, and funding pathways.

Educational Support

Detailed school reports with specific accommodation recommendations help ensure appropriate educational support. We can attend school meetings and provide training for educational staff when needed.

NDIS Planning Support

For eligible participants, we provide detailed functional assessments and intervention recommendations to support NDIS plan development and reviews. Our reports clearly outline support needs and capacity building goals.

Ongoing Connection

We maintain connection with families and individuals post-diagnosis, providing check-ins, progress monitoring, and assessment updates as needed for ongoing support planning.

Book Your Autism Assessment

📞 Phone: 1300 084 200
💻 Online: Book Assessment
📧 Email: info@mindhealth.com.au

Multi-day assessments available | Autism-friendly environment | Experienced autism specialists

Areas We Service:

Parramatta, Auburn, Blacktown, Castle Hill, Carlingford, Dundas, Eastwood, Epping, Granville, Harris Park, Homebush, Lidcombe, Merrylands, North Parramatta, Northmead, Oatlands, Pendle Hill, Rydalmere, Seven Hills, Strathfield, Telopea, Toongabbie, Wentworth Point, Wentworthville, Westmead, and surrounding Western Sydney suburbs.

Frequently Asked Questions

How long does autism assessment take?
A comprehensive autism assessment typically requires 8-10 hours across multiple sessions over 2-3 weeks, including ADOS-2, ADI-R, and/or MIGDAS-2, and cognitive testing to reduce fatigue and ensure optimal performance.

Can you assess adults for autism?
Yes, we regularly assess adults using age-appropriate tools and adult-focused interview approaches.

What age can children be assessed?
We can assess children from 6 years and over, and age-appropriate developmental measures.

Is autism assessment covered by NDIS?
Autism assessment is covered with active NDIS plans containing appropriate capacity building funding categories.

Do you assess girls and women for autism?
Yes, our clinicians have specific training in autism presentation in girls and women, including masking behaviours and different presentation patterns.

How long are assessment results valid?
Autism diagnostic reports remain valid indefinitely as autism is a lifelong condition, though updated assessments may be needed for specific purposes.

What if my child has challenging behaviours?
Our clinicians are experienced in autism assessment with challenging behaviours and can adapt assessment approaches to individual needs.

Can you assess if someone already has an autism diagnosis?
Yes, we provide updated assessments for NDIS planning, educational purposes, or when previous assessments are incomplete.

What is the MIGDAS-2 and why do you use it?
The MIGDAS-2 is a sensory-based, neuroaffirmative assessment tool that creates comfortable, authentic evaluation experiences by following the individual’s interests and using sensory materials. It provides rich qualitative insights that complement standardised test scores and supports our strengths-based approach to autism assessment.

Useful Resources

External Resources:

• Autism Spectrum Australia (Aspect) – National autism organisation
• Amaze (Autism Victoria) – Autism support and advocacy
• Autism Awareness Australia – Information and resources
• Early Childhood Intervention Australia – Early intervention resources

Our Related Services:

• ADHD Assessment – Often co-occurring condition
• IQ Testing Services – Cognitive assessment
• Anxiety Treatment – Common co-occurrence

Mind Health is a registered NDIS provider with ADOS-2, ADI-R and MIGDAS-2 certified psychologists. Our clinicians maintain current AHPRA registration and are members of the Australian Psychological Society (APS) with specialised training in autism assessment across the lifespan.

Disclaimer: This information is for educational purposes only. Autism assessment should be conducted by qualified healthcare professionals with appropriate training in autism diagnostic tools. Consult your GP or paediatrician if you have concerns about autism.