Free Autism Screening and Evaluation for Children and Teens

If your child is not pointing, not responding to their name, or not talking the way you expected, a short screening is a good place to start. Alpaca Health offers a 100% free at-home screener and insurance-covered ADOS-2 evaluations, plus ABA therapy with no waitlists. We accept Medicaid and major insurance.

A clinician takes notes while observing a young child play during an autism evaluation

The path from first concern to real support

A screener is only the first step. Here is the full path, and how Alpaca Health helps at each stage.

Screen at home

Answer 20 short yes or no questions about your child's play, communication, and social behavior. The M-CHAT-R takes about two minutes and gives you an instant result.

Start the screener
Get an evaluation

If the screener suggests a closer look, a qualified professional confirms things with tools like the ADOS-2. Alpaca Health offers insurance-covered ADOS-2 assessments.

Book an evaluation
Confirm the diagnosis

A full evaluation combines direct observation, your child's history, and standardized measures, so you leave with a clear answer and a written report.

Talk to our team
Start ABA therapy

After a diagnosis, many children begin ABA therapy for toddlers and older kids. Alpaca Health matches your family with a local provider, with no waitlists and Medicaid and major insurance accepted.

Find a provider

All autism screening tools for children and teens

Online screeners tell you whether a closer look makes sense. Professional assessments are how an autism diagnosis is actually made. Here is where each one fits.

M-CHAT-R
Online screener

A quick first check for toddlers 16 to 30 months old.

Take the screener →
CAST
Online screener

A screen for school-age children 4 to 11 years old.

Take the screener →
AQ-10
Online screener

A screen for teens and young adults 12 to 20.

Take the screener →
ADOS-2
Professional

The gold-standard autism assessment, done with a clinician.

Talk to our team →
Initial diagnostic evaluation
Professional

A full clinical evaluation that can lead to a diagnosis.

Talk to our team →
Free and private

Every screener is free to take, and your answers stay private.

Matched to your child's age

The M-CHAT-R fits toddlers 16 to 30 months; the CAST fits children 4 to 11; the AQ-10 fits teens 12 to 20.

Insurance checked upfront

If a closer look makes sense, we check your coverage before anything is scheduled.

Compare our autism screeners

Three free screeners for different ages. Each gives you an instant result and clear next steps.

Ages 16 to 30 months

M-CHAT-R

The first-step screen for toddlers.

  • 20 short yes or no questions
  • Takes about 5 minutes to complete
  • Designed for children 16 to 30 months
  • Free, private, and completed by you
Take the M-CHAT-R
Ages 4 to 11 years

CAST

The screen for school-age children.

  • 37 short yes or no questions
  • Takes about 5 minutes to complete
  • Designed for children 4 to 11 years
  • Free, private, and completed by you
Take the CAST
Ages 12 to 20

AQ-10

The screen for teens and young adults.

  • 10 short agree or disagree questions
  • Takes about 2 minutes to complete
  • Designed for ages 12 to 20
  • Free, with a version for parents and one for teens
Take the teen autism test

Why an early evaluation matters

Autism is present from early childhood, and the earlier a child gets support, the more it helps.

Research consistently shows that early intervention leads to better outcomes in communication, learning, and daily living. A screening will not label your child. It simply helps you decide whether a closer look makes sense, so you do not spend months wondering. Learning the early signs of autism is often what prompts families to screen in the first place.

What a diagnosis makes possible

  • Access to ABA therapy: A diagnosis is usually what opens the door to covered ABA therapy and related services.
  • Insurance coverage: Medicaid and most major insurance plans cover autism services once a child is diagnosed.
  • School support: A diagnosis can support an IEP, a 504 plan, and classroom accommodations.

Early signs of autism, by age

Every child grows at their own pace. These are common early signs that lead many families to screen. Seeing one does not mean your child is autistic. A short screener helps you decide whether a closer look makes sense.

By 12 months

Limited eye contact, does not respond to their name, little babbling, and few gestures such as pointing or waving.

By 18 months

Does not point to show you things, uses few or no words, and shows limited pretend play.

By 2 to 3 years

Loses words or skills, shows little interest in other children, repeats movements, and reacts strongly to changes in routine.

At 4 years and older

Finds back and forth conversation hard, has very focused interests, is sensitive to sounds or textures, and struggles to read social cues.

What makes Alpaca Health different

Most families face waitlists, phone tag, and surprise bills. Alpaca Health was built to remove those barriers.

Insurance-covered ADOS-2 evaluations

The gold-standard autism assessment, covered by insurance.

No waitlists

Families often wait months for an evaluation. With Alpaca Health, you do not have to.

Medicaid and major insurance

We accept Medicaid and most major insurance plans, so covered families pay little or nothing.

BCBA-led care

Your child's care is guided by Board Certified Behavior Analysts and reviewed for quality at every step.

In-home and virtual

Screening and in-home ABA therapy happen where your child is most comfortable, at home or online.

A real provider network

We match your family with a vetted local provider, not a waitlist or a call center.

What it costs and what insurance covers

The M-CHAT-R screener is completely free. ADOS-2 evaluations through Alpaca Health are covered by insurance. Once a child is diagnosed, ABA therapy is covered by Medicaid and most major insurance plans, so many families pay little or nothing out of pocket. If you want to understand what ABA therapy costs or whether Medicaid covers ABA therapy for your family, our team can help you check before anything begins.

Autism evaluation frequently asked questions

What is the difference between a screening and an evaluation?

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A screening is a short questionnaire, like the M-CHAT-R, that flags whether a full evaluation makes sense. An evaluation is a professional assessment, using tools like the ADOS-2, that can actually diagnose autism. A screening is a starting point. An evaluation gives you an answer.

Who can diagnose autism?

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Autism is diagnosed by qualified professionals such as developmental pediatricians, licensed psychologists, and other trained clinicians, using direct observation, your child's history, and standardized tools. A screener cannot diagnose autism on its own.

Who can diagnose autism in Texas (LPCs and others)?

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In Texas, the formal autism diagnosis that insurance plans, schools, and ABA providers accept must come from a qualified diagnostician such as a licensed psychologist, developmental pediatrician, or other physician. A Licensed Professional Counselor (LPC) cannot make that formal diagnosis. LPCs still play a valuable role: they can screen for developmental concerns, recognize early signs of autism, and refer your family to a qualified evaluator. If you are starting from a concern rather than a diagnosis, begin with a free screener, then confirm with a full evaluation such as the ADOS-2.

At what age can my child be evaluated?

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Screening can begin as early as 16 months with the M-CHAT-R. Professional evaluations through Alpaca Health are available for children of all ages. If you have concerns, it is never too early to ask.

How long does an autism evaluation take?

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The at-home screener takes about two minutes. A full professional evaluation usually takes a few hours and may happen across one or two visits, followed by a written report and a conversation about next steps.

Does an evaluation cost anything?

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The M-CHAT-R screener is free, and ADOS-2 evaluations through Alpaca Health are covered by insurance. ABA therapy is covered by Medicaid and most major insurance plans. If you would like help, talk to our team.

What happens after a diagnosis?

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After a diagnosis, many families begin ABA therapy. Alpaca Health matches you with a local provider, with no waitlists and Medicaid and major insurance accepted, so support can start quickly. You can also browse our autism screening resources for more.

Sources

Robins DL, Casagrande K, Barton M, et al. Validation of the Modified Checklist for Autism in Toddlers, Revised With Follow-up (M-CHAT-R/F). Pediatrics, 2014.

Scott FJ, Baron-Cohen S, Bolton P, Brayne C. The CAST (Childhood Autism Spectrum Test). Autism, 2002.

American Academy of Pediatrics. Recommends autism-specific screening at the 18 and 24 month well-child visits.

Centers for Disease Control and Prevention. Autism spectrum disorder screening and the Learn the Signs. Act Early. program.

Reviewed by Samantha Ridout, BCBA

Board Certified Behavior Analyst, Clinical Reviewer at Alpaca Health. BACB certification #1-22-57709. Last reviewed July 2026.

Verify at bacb.com

Take the first step today

A short screener can bring clarity and open the door to early support. If you would rather talk it through, the Alpaca Health team is here to help.