
Last updated 2026-07-10
TL;DR
An early intervention evaluation is a free assessment for children under age 3 who may have a developmental delay. Parents can refer their own child. A team of specialists evaluates the child across several areas, and results arrive within 45 days of the referral in most states. If the child qualifies, an Individualized Family Service Plan (IFSP) is written and services usually begin within 30 days of signing.
What is an early intervention evaluation, exactly?
An early intervention evaluation is a free, multi-specialist assessment that decides whether your child under age 3 qualifies for developmental services. It's run through your state under a federal law. It covers speech, motor skills, thinking, self-care, and social-emotional development, all in one process.
Early intervention (EI) is a federally mandated program under Part C of the Individuals with Disabilities Education Act (IDEA). It serves children from birth through age 2 years, 11 months who have a developmental delay or a diagnosed condition likely to cause one. [1]
The evaluation is free to families. States cannot charge for the evaluation itself, though they may use a sliding-scale fee for the services that follow. This right holds regardless of income, insurance status, or immigration status. [1]
The assessment covers several areas: communication and language, motor skills (both gross and fine), cognitive development, adaptive behavior (things like feeding and dressing), and social-emotional development. Your state's EI program coordinates the process, but the testing is done by specialists in each area. A speech-language pathologist handles communication. A physical or occupational therapist handles motor concerns. A developmental pediatrician or psychologist may assess thinking and social development. [2]
Here's what many parents don't realize: you don't need a doctor's referral. Any parent or caregiver can self-refer by contacting the state EI program directly. Pediatricians do refer routinely too, especially at the 9-, 18-, and 24-month well-child visits. [3]
How do I request an early intervention evaluation?
Contact your state's lead agency for early intervention by phone or online. Every state has one. You can also ask your pediatrician, a hospital social worker, or your childcare provider to make the referral for you. The Center for Parent Information and Resources keeps a state-by-state directory. [4]
Once the program receives your referral, the state has 45 days to finish the evaluation and, if your child qualifies, hold an IFSP meeting. That 45-day clock starts the day the program gets the referral. [1] Some states move faster. Others hit the deadline exactly, and areas with evaluator shortages sometimes push right up against it.
Be specific when you call. Say exactly what you see: "My 18-month-old has no words and doesn't point to things." Concrete descriptions help the intake coordinator route your child to the right specialists fast. Write your notes down before you call.
The program should contact you within a few business days (timelines vary by state) to schedule the evaluation. You'll also get a prior written notice explaining your rights under IDEA, including the right to accept or decline the evaluation. You run this process, not them.
What happens during the evaluation visit?
The evaluation usually happens at home or somewhere familiar, like your childcare center, and lasts one to three hours. A parent interview comes first, then direct play-based testing of your child, observation of how you two interact, and a review of any records you bring. Multiple evaluators may come at once or on separate days. [2]
Why home? Young children act like themselves in comfortable places, and evaluators want to see real behavior, not a stressed kid in a clinical exam room. The visit sometimes splits across two sessions if your child tires out or gets upset.
Here's roughly how it goes:
Parent interview first. The evaluator asks about your child's history: pregnancy and birth, milestones, medical history, family history, and your specific concerns. Don't minimize. This is not the moment to say "he's probably fine." Describe the things that worry you every day.
Direct assessment of the child. The evaluator uses standardized tests, structured play, and observation. For speech and language, a speech-language pathologist might reach for the Bayley Scales of Infant and Toddler Development (4th edition), the Preschool Language Scales (PLS-5), or informal play-based measures. [5] They watch how your child communicates: pointing, gesturing, babbling, using words, following directions.
Observation of parent-child play. Some evaluators just watch you and your child play together. This is not a test of your parenting. It shows how your child communicates with someone they trust.
Record review. Bring medical records, NICU discharge summaries, hearing test results, or prior therapy notes. They save time and add context a single visit can't reveal.
After the visit, evaluators score the tests and write a formal report. Some programs share first impressions that day. Others wait for the full report.
What tests do evaluators use for speech and language?
For children under 3, evaluators combine standardized tools with naturalistic observation, because formal testing gets unreliable with toddlers who won't sit still or follow directions on command. Common instruments include the PLS-5, the Bayley-4, the Communication and Symbolic Behavior Scales, and the parent-report MacArthur-Bates CDI. [5]
Here are the tools you're most likely to see:
| Tool | What it measures | Age range |
|---|---|---|
| Preschool Language Scales, 5th ed. (PLS-5) | Auditory comprehension and expressive communication | Birth to 7:11 |
| Bayley Scales of Infant and Toddler Development, 4th ed. | Cognition, language, motor, social-emotional | 16 days to 42 months |
| Communication and Symbolic Behavior Scales (CSBS) | Social communication, gestures, symbols | 6 months to 2 years |
| MacArthur-Bates Communicative Development Inventories | Vocabulary and gesture via parent report | 8 to 37 months |
Parent-report tools like the MacArthur-Bates CDI count as valid measures and get used right alongside direct testing, because parents watch their child across far more situations than any evaluator ever sees. [6]
The evaluator also tracks qualitative signs. Does your child make eye contact? Do they point or show you things? Do they respond to their name? Those observations feed the clinical picture next to the numbers.
If you've noticed behaviors like repeating phrases out of context, tell the evaluator. That kind of echolalia can be an important signal and is worth describing precisely.
How does eligibility get decided?
Eligibility is decided by the full evaluation team, including you, using your state's specific criteria. IDEA sets a floor, but states define "delay" differently. Most use a standard-score cutoff, commonly a 25% delay in one or more areas or a score 1.5 to 2 standard deviations below the mean. [1]
Here's the floor IDEA sets: states must serve children with a diagnosed physical or mental condition that has a high probability of causing a delay (like Down syndrome or hearing loss), and states must also serve children with measurable delays. [1] How each state defines "measurable" is where things split. Some states use 25% delay in one area OR 20% delay in two or more areas. Check your state's rules, because they genuinely vary.
For speech and language, the American Speech-Language-Hearing Association points out that "late talkers" (kids who are slow to produce words but otherwise developing typically) may or may not qualify depending on state rules, even when parents are rightly worried. [2] Not qualifying doesn't mean nothing is wrong or that no help exists elsewhere.
Parents are part of the deciding team. You have the right to disagree with the findings and request a second evaluation. If you and the program can't resolve a disagreement, you can request mediation or a formal due process hearing under IDEA. [1]
What is an IFSP and how is it different from an IEP?
An IFSP (Individualized Family Service Plan) is the document that drives your child's early intervention: what services they get, how often, where, and toward what goals. It's for kids under 3 under Part C of IDEA and is built around the whole family. An IEP is the school-age version, used under Part B for ages 3 to 21. [1]
The two differ in a few ways that matter. An IFSP sets goals for the family, not only the child, and services happen in "natural environments" like home and daycare rather than a school or clinic. An IEP is education-focused and centered on the child in a school setting. [1]
The IFSP meeting includes you, your co-parent if applicable, the evaluators, the service coordinator, and any specialists who'll provide services. You sign the IFSP to agree to it. Services usually begin within 30 days of that signature.
IFSPs get reviewed every 6 months and fully reevaluated once a year. As your child nears age 3, the team starts transition planning to move them either out of services or into Part B through the school district. That transition must start by age 2 years and 9 months. [1]
For kids with complex communication needs, it pays to learn exactly what's on the menu. Early intervention services can include speech therapy, occupational therapy, physical therapy, feeding therapy, assistive technology, family training, and service coordination.
What if my child doesn't qualify for early intervention?
Not qualifying doesn't mean your child has no needs. It means their delay, measured on one particular day with particular tests, didn't clear your state's threshold. You have real options, and parent-delivered language strategies work in the meantime. This happens often, and it's frustrating when you clearly see something that concerns you.
Here's what I'd do. Request a private speech-language evaluation from a pediatric SLP outside the EI system. Speech therapy evaluations from private practitioners often take a different angle and catch concerns the standardized testing missed. Insurance covers some of this. Medicaid usually covers a broader group of children.
Ask your pediatrician for a referral to a developmental pediatrician. Worth doing especially if you have concerns beyond speech, like social communication differences, sensory sensitivities, or motor issues.
Watch and reapply. If your child keeps falling behind peers, request another EI evaluation. There's no penalty for reapplying.
While you wait, parent-implemented strategies genuinely help. The evidence on naturalistic, parent-delivered language intervention is strong. ASHA recommends following the child's lead, expanding on what they say or try to say, and swapping direct questions for comments. [2] These aren't consolation prizes. They work.
What should I do to prepare for the evaluation?
Bring three things: a two-week log of your child's words, sounds, and gestures, a written list of your concerns, and a complete developmental history including any hearing screening results. A little prep decides how much the evaluators learn in one session.
Keep the log for one to two weeks beforehand. Write down every word, sound, or gesture your child uses. Note what they understand (can they point to body parts? follow two-step directions?). Video beats notes. A two-minute clip of your child playing at home is worth more than an hour of a child sitting frozen in front of a stranger.
Write out your concerns and hand the evaluator a copy. Parents who describe things clearly get better evaluations, not because the evaluator does less, but because they have better information to work with.
Pack the developmental history: prior evaluations, medical records, and your child's baby book if it has milestone notes. If your child had a newborn hearing screening and any follow-up, bring those results. Hearing is the first thing to rule out with a speech delay, and some evaluators want confirmation before going further. [3]
Don't prep your child. Don't practice the tasks you expect. The point is to see what your child actually does, not a coached performance. Feed them first and book the visit for a time of day when they're usually alert and happy.
Bring any communication supports your child uses. Picture board, tablet with a communication app, AAC devices of any kind. The evaluator needs to see how your child communicates across every channel.
How long does early intervention therapy actually last?
Services run until your child turns 3. Some kids make enough progress to be discharged from a specific service sooner. Others use every day of eligibility. Speech therapy in EI runs commonly one to two times a week for 30 to 60 minutes per session, though it varies widely.
Frequency is set in the IFSP based on your child's needs, not the program's scheduling convenience (though staffing shortages do bend this in practice). If you think your child needs more, say so at the meeting.
Earlier and more intensive intervention produces better language outcomes. A review published in the Journal of Speech, Language, and Hearing Research found that children who received intervention before age 2 showed larger gains in language than those who started later, even after controlling for initial severity. [7]
Progress gets checked at every IFSP review. If goals are met quickly, the team may shift them or reduce frequency. If progress has stalled, the team should dig into why and consider a different approach. You can request an IFSP review any time, not only at the 6-month mark.
For kids with more complex communication challenges, including those who may be on the autism spectrum, autism spectrum speech therapy methods in EI can look different from those used with pure language delays. Ask the SLP directly about their approach and how it fits your child's profile.
Are there things early intervention evaluation doesn't cover?
Yes. An EI evaluation is not a diagnostic evaluation, it won't automatically hook you up with every community resource, and it doesn't cover school-age kids. A speech delay identified through EI comes with no autism diagnosis, no apraxia diagnosis, no clinical label. The IFSP can name an area of delay and aim services at it, but a formal diagnosis needs a separate evaluation, usually by a developmental pediatrician, psychologist, or medical specialist. [3]
If your child's SLP spots features during therapy that suggest childhood apraxia of speech, for example, they can flag it and refer you out, but the EI evaluation itself won't diagnose it.
EI also won't automatically connect you to community programs. Your service coordinator should help, but coordination quality varies a lot. Ask outright: "Are there parent support groups? Any local programs for siblings? What happens to our records when my child ages out at 3?"
And EI stops at age 3. If your child turns 3 and still needs services, the school district takes over under Part B of IDEA, and the evaluation process starts fresh under that system. Start the transition conversation well before the third birthday.
Can I use technology or apps to support my child between sessions?
Yes, and between sessions is where most of your child's learning happens. A session once or twice a week is, at most, two hours out of roughly 112 waking hours a week. The other 110 hours are yours. Interactive tools that model language and prompt back-and-forth can help. Passive screen time cannot.
Speech-language pathologists in EI are required to coach and train parents as part of the natural environment model. Ask your SLP to show you specific moves to use during daily routines like meals, bath time, and play. The strategies aren't complicated. They just have to be consistent.
For families who want structured support between visits, tools that model language, prompt communication, and track progress in natural settings can genuinely help. Little Words is an AI-powered speech companion built for neurodivergent kids that works alongside therapy rather than replacing it. If you're curious how it fits your child, the start quiz can help you sort that out.
What doesn't help: passive screen time as a language intervention. The research is clear here. The American Academy of Pediatrics found that interactive, responsive communication drives language learning, and content playing at a child is not the same as a responsive adult (or an app built to prompt responses) engaging the child in real back-and-forth. [8]
What are my rights during the early intervention process?
IDEA Part C gives parents specific, enforceable rights: informed written consent before anything happens, results in writing in a language you understand, the right to an independent evaluation if you disagree, the right to bring anyone to meetings, and the right to dispute decisions. Knowing them puts you in a far stronger position.
You must give informed written consent before any evaluation and before services begin. You can withdraw consent at any time. [1]
You have the right to receive all evaluation results in writing, in a language you understand. If English is not your primary language, the program must provide interpretation.
You have the right to request an independent educational evaluation (IEE) if you disagree with the program's findings. The program may pay for it or require you to pay and then reimburse, depending on state rules.
You have the right to bring anyone to IFSP meetings: an advocate, a family member, a private therapist who knows your child.
You have the right to dispute decisions through mediation or a due process complaint. These processes are defined under 34 CFR Part 303. [1]
If you ever feel pushed to sign quickly, slow down. You are always allowed to take documents home and read them first. A program that pressures you to sign on the spot is not operating the way the law intends.
For broader context on the early intervention system, knowing the federal structure helps you hold your local program accountable.
Frequently asked questions
How long does an early intervention evaluation take?
The visit itself usually lasts one to three hours, sometimes spread across two appointments for young children who tire easily. From the day the program receives your referral to the day the IFSP is signed, federal law allows up to 45 days. In practice, some programs move faster and some hit the deadline exactly. Ask your intake coordinator what their typical timeline looks like in your area.
Do I need a doctor's referral to get an early intervention evaluation?
No. Any parent or legal guardian can self-refer by contacting the state's Part C early intervention program directly. Pediatricians, teachers, childcare providers, and other professionals can also make referrals on your behalf. You don't need a prescription or a physician's sign-off to start the process.
Is the early intervention evaluation really free?
Yes. IDEA Part C prohibits states from charging families for the evaluation. Services that follow may have a sliding-scale fee depending on family income, but the evaluation itself costs nothing regardless of your income, insurance status, or immigration status. Some states also provide services at no cost; others may bill insurance or Medicaid first.
What if my child won't cooperate during the evaluation?
Evaluators who work with infants and toddlers are trained for this. They use play-based assessment, parent report tools, and observation precisely because young children don't perform on demand. If your child is having a hard day, tell the evaluator. They may adjust the session or schedule a follow-up. A skilled EI evaluator gathers useful information even from a child who is crying or hiding.
My child is 2.5 years old. Is it too late to start early intervention?
It's not too late, but timing matters. Services run through age 2 years, 11 months, so a child who qualifies at 2.5 gets roughly 6 months of EI services before transitioning. That's still meaningful. Request the evaluation now rather than waiting. If your child qualifies and turns 3 before services wrap up, the transition team will connect you to school-district services under Part B of IDEA.
Will the evaluation tell me if my child has autism?
No. An EI evaluation identifies areas of developmental delay and determines eligibility for services. It does not make clinical diagnoses. If the evaluation team or your child's SLP notices patterns consistent with autism, they should flag that and refer you to a developmental pediatrician or psychologist for a diagnostic evaluation. Those are separate processes with separate specialists.
What is the difference between an early intervention evaluation and a speech therapy evaluation?
An EI evaluation is a multidisciplinary assessment coordinated by your state's Part C program, covers multiple developmental domains, is free, and determines IDEA eligibility. A private speech therapy evaluation is conducted solely by a speech-language pathologist, focuses specifically on communication and swallowing, may be billed to insurance, and results in a clinical report that can guide therapy regardless of IDEA eligibility.
How often will my child receive speech therapy through early intervention?
Frequency is set individually in the IFSP based on your child's needs. One to two sessions per week is common, typically 30 to 60 minutes each. Sessions happen in natural environments like home or daycare. The IFSP team, including you, determines frequency. If you think your child needs more, say so directly at the IFSP meeting. You can request an increase at any review.
What happens at age 3 when early intervention ends?
Transition planning must begin by age 2 years and 9 months under IDEA. If your child still needs services at 3, the school district takes over under Part B of IDEA. This involves a new evaluation and possibly an IEP. The EI team is supposed to help coordinate this handoff. Don't wait for the program to bring it up; ask about transition planning proactively around your child's second birthday.
Can I disagree with the early intervention evaluation results?
Yes. You have the right to request an independent educational evaluation if you disagree with the program's findings. You can also request mediation or file a due process complaint under IDEA Part C. Before going those routes, asking for a meeting with the evaluation team to discuss your concerns often resolves disagreements. Bring notes and specific observations that contradict what the report says.
What should I say when I call to request an evaluation?
Be specific and concrete. Say your child's age, the specific concerns you're seeing ("no words at 18 months," "doesn't point or wave," "lost words she used to have"), and how long you've noticed these things. You don't need to diagnose or use clinical terms. The intake coordinator's job is to route your child appropriately; your job is to describe what you observe.
Can I bring someone with me to the early intervention evaluation?
Yes. IDEA explicitly gives parents the right to bring anyone they choose to IFSP meetings, including a family member, friend, advocate, or private therapist. You can also bring someone to the evaluation visit itself; check with your evaluator ahead of time so they can plan for the extra person in the room.
What if my child qualifies but I'm not sure about the services being offered?
Sign the IFSP only for the parts you agree with, or ask for more time to review it. You can consent to some services and decline others. You can also request specific services by name at the IFSP meeting if you believe your child needs something not on the proposed plan. Bring documentation, like a note from a private SLP, to support your request.
Sources
- U.S. Department of Education, Individuals with Disabilities Education Act (IDEA) Part C statute and regulations, 34 CFR Part 303: Part C of IDEA requires free evaluations within 45 days of referral, IFSP development, natural environment services, and transition planning starting at age 2 years 9 months.
- American Speech-Language-Hearing Association (ASHA), Early Intervention: ASHA guidance on EI evaluation methods, multidisciplinary team roles, and parent-implemented language strategies.
- American Academy of Pediatrics (AAP), Developmental Surveillance and Screening: AAP recommends developmental surveillance at all well-child visits and formal screening at 9, 18, and 24/30 months; referral to EI if delays detected.
- Center for Parent Information and Resources (CPIR), State Resources for Early Intervention: CPIR maintains a state-by-state directory of early intervention programs and parent training centers.
- Zimmerman, I.L., Steiner, V.G., & Pond, R.E. Preschool Language Scales, 5th edition (PLS-5). Pearson, 2011.: PLS-5 is a standardized tool commonly used in EI evaluations to measure auditory comprehension and expressive communication from birth to 7:11.
- Fenson, L. et al., MacArthur-Bates Communicative Development Inventories (CDIs), 2nd ed. Brookes Publishing, 2007.: Parent-report vocabulary tools like the MacArthur-Bates CDI are considered valid instruments for EI assessment across ages 8 to 37 months.
- Journal of Speech, Language, and Hearing Research (ASHA journals): Research published in JSLHR found children who received language intervention before age 2 showed larger gains than those who started later, even controlling for initial severity.
- American Academy of Pediatrics, Media and Young Minds, Pediatrics Vol. 138 No. 5, November 2016: AAP states that interactive, responsive communication drives language learning in young children; passive screen time does not substitute for contingent adult interaction.
- ZERO TO THREE, Early Intervention: What It Is and How It Works: ZERO TO THREE summarizes EI eligibility criteria variation across states, including 25% delay and 1.5 SD below mean thresholds commonly used.
- Bayley, N. Bayley Scales of Infant and Toddler Development, 4th ed. (Bayley-4). Pearson, 2019.: The Bayley-4 is a standardized developmental assessment used in EI evaluations for children 16 days to 42 months across cognitive, language, and motor domains.
- Wetherby, A.M. & Prizant, B.M., Communication and Symbolic Behavior Scales (CSBS). Brookes Publishing, 2002.: CSBS is used in EI evaluations to assess social communication, gestures, and symbolic behavior in children ages 6 months to 2 years.
