Indian Scale for Assessment of Autism
ISAA vs the AbilityScore® developmental assessment
The ISAA and the AbilityScore® answer different questions. The ISAA is a government-recognised tool used mainly to certify autism and assign a disability percentage for entitlements. The AbilityScore® is a clinician-administered structured assessment that maps abilities across developmental domains to build and track a personalised therapy plan. They complement rather than replace each other, and any diagnosis is confirmed only by a qualified Pinnacle clinician.
You may have heard of the ISAA at a government hospital and wondered how it sits alongside Pinnacle's AbilityScore® — here's a clear, gentle comparison.
In short
The Indian Scale for Assessment of Autism (ISAA) and the AbilityScore® serve two different purposes. The ISAA is a government-recognised tool used mainly to certify autism and decide disability percentage for entitlements; the AbilityScore® is a clinician-administered structured assessment that maps your child's abilities across many developmental areas to build a personalised therapy plan and track progress over time. They complement each other — one supports official certification, the other guides everyday growth.How the two compare
Think of them as answering different questions about your child.- What it's mainly for — The ISAA was designed to assess severity of autism and assign a disability percentage, which is used for the official disability certificate and related benefits in India. The AbilityScore® is designed to understand how your child is developing across domains — communication, social skills, play, motor, daily living and more — so therapy can be tailored and measured.
- What it covers — The ISAA focuses specifically on autism-related behaviours. The AbilityScore® looks broadly at strengths and emerging skills across development, whatever the underlying picture, so the plan fits the whole child.
- How often it's used — An ISAA certification is typically a periodic, formal exercise. The AbilityScore® is repeated over a journey, giving a living baseline you can watch progress against session by session.
- Who administers it — The ISAA is administered by authorised professionals at recognised centres for certification. The AbilityScore® is administered by qualified Pinnacle clinicians as part of a therapy pathway.
Neither tool replaces the other. Many families use an ISAA-based certificate to access entitlements and an AbilityScore® to drive day-to-day therapy goals.
When each one helps
If you need an official disability certificate or access to government schemes and entitlements, the ISAA route at an authorised centre is the appropriate one. If you want a clear, ability-focused picture to start or fine-tune therapy and measure your child's growth, the AbilityScore® is built for that. Choosing one does not rule out the other.The Pinnacle way
A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under the care of a qualified clinician — never from an online figure or a form. The AbilityScore® is a clinician-administered structured assessment that measures your child against their own baseline, turning observation into a practical plan. Backed by 2.5 billion+ data points and 25 million+ therapy sessions across 70+ centres, our clinicians pair assessment with focused support such as speech therapy and tailored learning goals. Learn how the measure works: what the AbilityScore is and how it's calculated.Trusted sources
WHO ICD-11 framework for autism spectrum disorder; Rehabilitation Council of India guidance on recognised assessment and certification in India; CDC and AAP (HealthyChildren) resources on developmental monitoring and screening.Next step — Want an ability-focused picture to guide your child's growth? Book an AbilityScore assessment with a Pinnacle clinician for warm, practical next steps.
This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.
What to watch
If you need an official disability certificate or access to government schemes, the ISAA route at an authorised centre applies. If you want an ability-focused baseline to start or fine-tune therapy and track progress, the AbilityScore® is built for that — and using one does not rule out the other.
Try this at home
Keep one simple folder for your child's records — certificates, assessment summaries and therapy goals together. Bringing it to each visit helps clinicians build on what's already known instead of starting over.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10 · reviewed every 365 days
This is general information, not a diagnosis. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care.
Frequently asked
Is the ISAA the same as the AbilityScore®?
No. The ISAA is a government-recognised tool used mainly to certify autism and assign a disability percentage for entitlements. The AbilityScore® is a clinician-administered structured assessment that maps your child's abilities across developmental domains to guide and track therapy. They serve different purposes and can be used together.
Can my child have both an ISAA assessment and an AbilityScore®?
Yes. Many families use an ISAA-based certificate to access entitlements and an AbilityScore® to drive day-to-day therapy goals. One does not replace the other.
Does the AbilityScore® give a diagnosis?
The AbilityScore® is a structured assessment, not a label. A diagnosis is formed only at a Pinnacle Blooms Network centre under the care of a qualified clinician, never from an online figure or form.
Which one should I do first?
It depends on your goal. If you need an official disability certificate, the ISAA route at an authorised centre is appropriate. If you want a clear, ability-focused plan to begin or fine-tune therapy, start with an AbilityScore® at a Pinnacle centre.