Speech Delay or Autism Quiz: What a Quiz Can and Can’t Tell You

✓ Reviewed against ASHA Practice Portal, CDC Learn the Signs. Act Early., AAP HealthyChildren, NIDCDEvidence level BLast reviewed September 9, 2026Published September 9, 2026

No online quiz can tell speech delay from autism. A good screener only flags whether a formal evaluation is worth having. The tool paediatricians use most, the M-CHAT-R/F, screens for autism at 18 and 24 months; a speech-delay screener asks about words and understanding. Both point to a professional, not a verdict.

What a quiz can and can’t tell you

Start with the honest limit. A quiz — any quiz, including ours — cannot tell you whether your child has a speech delay or autism. It can do one useful thing: help you decide whether a professional evaluation is worth having now rather than later. Even the CDC’s milestone checklists, the best-known parent tools in the world, are described by the CDC as conversation tools that should not be used as screening or diagnostic instruments.⁶

The same is true of the formal screeners clinicians use. The American Academy of Pediatrics is explicit that screening for autism is not the same as diagnosing it: a positive screen does not mean a child will be diagnosed with autism, and a negative screen does not identify every autistic child. Screens are prompts for the next step.¹

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The one thing every good quiz has in common

It ends with “talk to your child’s doctor,” not with a label. If a quiz gives you a diagnosis, close the tab.

The screener your paediatrician actually uses

When is autism screening done?

Developmental screening uses formal, research-based questionnaires, and the American Academy of Pediatrics recommends it for all children at least at the 9-, 18- and 30-month well-child visits. On top of that, the AAP recommends that all children be screened specifically for autism at the 18- and 24-month visits — every child, not only those already showing signs, because screening only works when it is applied to everyone.^5,1

Which tool is it?

The AAP does not endorse one screening tool over another, but names several a provider may use — the Ages and Stages Questionnaires SE-2, the Communication and Symbolic Behavior Scales, the Parents’ Observations of Social Interaction, and the Modified Checklist for Autism in Toddlers, Revised, with Follow-up (M-CHAT-R/F) — and says the M-CHAT-R/F is the most common autism screening tool used in paediatric offices. It is a questionnaire filled out by parents; the “follow-up” is the clinician’s structured conversation about the answers.¹

Notice what that questionnaire is about. It asks about social communication — pointing, looking, sharing, responding — far more than about words. That is the difference between an autism screen and a speech-delay screen, and it is why an online “speech delay or autism” quiz that only counts words cannot do the job.^2,1

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If you are unsure what screening your child has had

Ask. The AAP’s advice is that if you are unsure what developmental and autism screening your child has received, ask your paediatrician — and that screening should also be done whenever a parent shares a concern.

What tends to differ: speech delay vs. autism

Paediatricians describe the early differences in autism as subtle and easy to miss precisely because autistic children usually sit, crawl and walk on time. The differences show up in gestures, pretend play and social language. The table puts the two side by side, worded the way the clinical sources word them.^2,11

Where a speech delay alone and autism tend to differ (AAP HealthyChildren; ASHA).
Area	Speech delay alone	Autism
Joint attention	Looks where you point, looks back at you, shares a smile	Delay in or lack of joint attention — found in most autistic children
Pointing	Points to ask for things and, by 18 months, to show you interesting things	May lead a parent by the hand to an object instead of pointing; may point to get something rather than to share it
Response to name	Responds most of the time	May seem to hear other sounds but not their name
Words	Late or unclear, but used to communicate with people	May label objects but not use words to ask; may echo or repeat what they hear
Play	Interactive; pretend play emerges	May prefer to play alone; may have intense interest in objects other children ignore
Regression	Not a feature	Losing words or skills is a reason to act immediately

Where a speech delay alone and autism tend to differ (AAP HealthyChildren; ASHA).^2,3,8

No single row decides anything, and the two are not opposites: a child can have a speech or language delay and be autistic, or have a delay and not be autistic. ASHA’s clinical guidance on autism spectrum disorder treats social communication as the core, with speech and language differences as one part of a wider picture.¹¹

What a speech delay on its own usually looks like

Late language emergence — talking late without another explanation — is common in toddlers. The child usually understands well, points, waves, brings you things to show you and plays with you; the words are what lag. Some late talkers catch up on their own, but ASHA notes there is no reliable way to predict which children will, which is why the advice is to check rather than wait.^12,15

The milestones give you the yardstick: by 1 year the CDC expects a child to call a parent “mama” or “dada” or another special name and to wave “bye-bye”; by 18 months to try to say three or more words besides “mama” or “dada,” to follow one-step directions without gestures, and to point to show you something interesting; by 2 years to say at least two words together. A child missing the word milestones but meeting the pointing and understanding ones is showing the pattern of a speech or language delay rather than of autism — and still deserves a screening.^9,8,10

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Signs the AAP asks you to report alongside a language delay

Doesn’t return a happy smile; doesn’t seem to notice when you are in the room; seems to hear other noises but not their name; acts as if in their own world; prefers to play alone; has intense interest in objects young children are not usually interested in; or has stopped talking or doing things they used to do. Tell your child’s doctor if any of these are present.

That list comes from the AAP’s parent information on language delays, and it is the closest thing to an honest “speech delay or autism” checklist that exists: not a score, but the behaviours a doctor wants to hear about.³

The next steps, in order

1Write down what you see — words, gestures, response to name, play, and anything your child has stopped doing. Specific examples beat general worry.
2Talk to your child’s doctor and ask for a developmental screening and, if your child is a toddler, an autism screen. The CDC’s instruction is “don’t wait” — acting early can make a real difference.
3If you or the doctor are still concerned, ask for a referral to a specialist who can evaluate your child further.
4Contact your area’s early intervention programme. In the United States a child under three can be evaluated without a referral.
5For speech and language specifically, a certified speech-language pathologist can evaluate and, where needed, treat — ASHA’s directory lists them.

The AAP’s guidance on raising concerns is to describe what you observe, ask directly for a screening, and follow up. A speech-language pathologist’s scope covers the evaluation and treatment of speech and language; assessing for autism is a job for a developmental team. Early support helps in both cases, so the order above never costs you anything.^4,7,13,14

You are also in large company. About 1 in 12 U.S. children has had a disorder related to voice, speech, language or swallowing — the systems for screening and early intervention exist because asking is the normal thing to do.¹⁶

What our quiz is — and is not

SpeechStep’s free quiz below is a speech and language delay screener. It asks about words, understanding and gestures and tells you whether an evaluation looks worthwhile. It does not screen for autism, cannot detect or rule it out, and says so. If the answers make you think of the social signs above, skip the quiz and book the doctor.

Free Speech & Language Delay Quiz

A few questions about words, understanding and gestures — a speech-delay screener, not an autism test.

Try it free →

Frequently asked questions

Is there a quiz that tells me whether my child has speech delay or autism?＋

No. A quiz — ours included — can only suggest whether it is worth asking a professional. Autism is identified through a formal evaluation, and even a positive result on the validated screener paediatricians use does not mean a child will be diagnosed with autism. A screen is a prompt for the next step, not an answer.

What screener do doctors actually use for autism?＋

The American Academy of Pediatrics recommends screening every child for autism at the 18- and 24-month well-child visits. The AAP does not endorse a single tool, but says the M-CHAT-R/F — the Modified Checklist for Autism in Toddlers, Revised, with Follow-up — is the most common autism screening tool used in paediatric offices. It is a parent-completed questionnaire, followed up by the clinician.

What is the difference between a speech delay and autism?＋

A speech delay mainly affects how much or how clearly a child talks; the drive to connect is usually intact. Autism involves differences in social communication — joint attention, gestures, response to name, back-and-forth play — usually alongside restricted or repetitive behaviours. A child can have a speech delay without autism, and the two can also occur together.

My toddler has words but doesn’t point or respond to their name. Is that autism?＋

It is a reason to be evaluated, not a diagnosis. Paediatricians describe a delay in or lack of joint attention — pointing to share interest, looking back and forth between an object and you — as one of the most important early differences seen in autistic children. Tell your child’s doctor exactly what you notice and ask for an autism screen and a developmental screen.

What should I do after an online quiz says “possible delay”?＋

Take the result to your child’s doctor and ask for a developmental screening. If you or the doctor are still concerned, ask for a referral to a specialist and contact your area’s early intervention programme, which in the United States can evaluate a child under three without a referral. A speech-language pathologist evaluates speech and language; a developmental team assesses for autism.

Does SpeechStep screen for autism?＋

No. Our free quiz is a speech and language delay screener: it asks about words, understanding and gestures and tells you whether an evaluation looks worthwhile. It does not screen for, detect or rule out autism, and we say so on the quiz itself.