What Happens at a Speech Evaluation: A Parent’s Guide to the SLP Assessment
A speech evaluation is a detailed assessment by a speech-language pathologist. Expect a case history, a look at how the mouth works, a test of sounds in words and conversation, a check on whether your child can copy sounds, and often language and hearing checks. It ends with a decision: typical, monitor, or a plan.
What a speech evaluation is for
A speech evaluation answers three questions: is your child’s speech typical for their age and language community, and if not, what kind of difficulty is it, and what should happen next? ASHA lists the possible results: a determination that speech is appropriate, a diagnosis of a speech sound disorder with its type and severity, recommended treatment targets, contributing factors, and referrals for other assessments as needed.1
ASHA’s consumer page summarizes the visit for families: the SLP tests speech and communication skills, listens to how your child says sounds, watches how the lips, jaw, and tongue move, may test language, and checks that hearing has been assessed, because hearing loss can affect speech.2
The parts of a speech evaluation
| Part | What happens | Why |
|---|---|---|
| Case history | Questions about concerns, ear infections, family history of speech/language/reading difficulties, languages and dialects at home, and how understandable your child is to family and teachers | Context for everything else |
| Oral mechanism exam | Looks at teeth, the hard and soft palate, and how the lips, jaw, tongue, and soft palate move | Rules structural causes in or out |
| Speech sound testing | Your child names pictures (a single-word test) and talks naturally (a connected speech sample) | Identifies which sounds and patterns are affected |
| Stimulability | Your child copies sounds they got wrong, in isolation, syllables, words, or phrases | Shows what is within reach and helps choose targets |
| Speech perception | Your child judges or points to words that differ by one sound | Checks whether they hear the difference |
| Intelligibility | How much of your child’s speech is understood | Measures real-world impact |
| Language and hearing | A language screen; a referral for a hearing test if needed | Speech problems often travel with these |
Components of a comprehensive speech sound assessment (ASHA Practice Portal).1
SLPs may also calculate a severity measure — the percentage of consonants correct (PCC) — from a transcribed speech sample, and judge intelligibility against norms. A study of 538 typical children, for example, found children should be at least 50% intelligible by 48 months.1,3
Accents, dialects, and other languages
A fair evaluation separates a disorder from a difference. ASHA says SLPs consider the sound variations of the languages and dialects used in the child’s community and the influence of accents and transfer between languages, and that standard scores cannot be reported for tests not normed on a group representative of the child.1
ASHA is also clear that accents are not a communication disorder. If your family speaks more than one language or a regional variety of English, tell the SLP at the start.7
If apraxia is suspected
When childhood apraxia of speech is a question, the SLP may use dynamic assessment — deliberately giving cues and strategies to see how your child’s speech changes — which ASHA describes as important for diagnosis and prognosis.6
Understanding the report
- Error patterns named (fronting, stopping, gliding) — see the phonological processes chart for their typical ages.
- Sounds written in phonetic symbols — /θ/ for TH, /ʃ/ for SH, /j/ for Y.
- Stimulability — which sounds your child could copy with a model.
- Severity and recommendations — treatment, monitoring, or no concern.
Stimulability is one of the most useful findings for planning: a classic review describes it as easily measured and valuable for prognosis and treatment planning. Age context matters too — R, for instance, is not expected until the 5;0–5;11 band in US norms.4,5
Booking an evaluation
Free Speech Delay Quiz
A 20-question screener to help you decide whether to book an evaluation.
Find a certified speech-language pathologist through ASHA’s ProFind directory, or ask your pediatrician or your child’s school. A screening — including SpeechStep’s — can help you decide whether to book, but it is not a diagnosis.8
Frequently asked questions
What happens at a speech evaluation?＋
ASHA describes a comprehensive speech sound assessment as including a case history, an oral mechanism examination, testing of speech sounds in single words and connected speech, stimulability testing, speech perception testing, and an intelligibility judgment — often with a language screening and a hearing check. The SLP then decides whether speech is typical for the child’s age and community, or diagnoses a disorder and recommends next steps.
How should I prepare my child for a speech evaluation?＋
Bring notes on your concerns, when they started, any ear infections, family history of speech, language, or reading difficulties, and the languages spoken at home — all things ASHA lists in the case history. Recordings of your child talking at home can help, since children are often quieter with a new adult.
Will my child’s accent or second language affect the evaluation?＋
It should be accounted for. ASHA says SLPs consider the language and dialect variations of the child’s community, and that standard scores cannot be reported for tests not normed on a group representative of the child. Tell the SLP which languages and dialects your child hears and speaks.
Is an online speech screening the same as an evaluation?＋
No. A screening — online or in person — checks whether further assessment is needed. ASHA describes possible screening outcomes as speech being appropriate, monitoring and rescreening, or referral for a comprehensive assessment. Only a full evaluation by an SLP can diagnose a speech sound disorder.
Put this into practice today
Try the free speech delay quiz, or start daily AI speech practice — every child takes one SpeechStep at a time.
References
8 sources from authoritative bodies. Last reviewed October 2026.
- 1.ASHASpeech Sound Disorders: Articulation and Phonology — Practice Portal page.
- 2.ASHASpeech Sound Disorders — Consumer page.
- 3.Peer-reviewedHustad et al. — Speech Development Between 30 and 119 Months in Typical Children I: Intelligibility Growth Curves — Normative study (JSLHR), 2021.
- 4.Peer-reviewedPowell & Miccio — Stimulability: A Useful Clinical Tool — Review (Journal of Communication Disorders), 1996.
- 5.Peer-reviewedCrowe & McLeod — Children’s English Consonant Acquisition in the United States: A Review — Systematic review (AJSLP), 2020.
- 6.ASHAChildhood Apraxia of Speech — Practice Portal page.
- 7.ASHAAccent Modification — Practice Portal page.
- 8.ASHAASHA ProFind: Find a Certified Speech-Language Pathologist — Referral directory.