Language sample analysis is one of the most powerful tools a speech-language pathologist (SLP) can use. It offers a real, authentic look at how a child uses language in everyday communication—far beyond what standardized tests can show.

Whether you’re an SLP, a teacher, or a parent interested in understanding your child’s communication skills, language sampling helps uncover what’s working well and where support may be needed. The good news? It doesn’t have to be complicated.

Here’s how to complete a language sample analysis in four easy, practical steps that anyone can follow.

Step 1: Collect a Natural Language Sample

The first step is to gather a representative sample of the child’s spontaneous speech. The goal is to capture natural communication—not rehearsed answers.

How to Collect:

• Choose the right setting. Pick an environment where the child feels relaxed (classroom, therapy room, or home).

• Use open-ended prompts. Ask questions like “Tell me about your favorite game” or “What did you do this weekend?”

• Encourage, don’t test. Respond naturally and let the child lead the conversation.

• Record the session. Audio or video recordings help ensure accuracy when transcribing later.

SLP tip: For preschoolers, 50–100 utterances usually provide a solid sample. For older children, 100+ utterances offer more reliable data.

Goal: Capture everyday language that reflects true ability—grammar, vocabulary, and narrative skills.

Step 2: Transcribe the Sample

Next, write down exactly what the child says—word for word. This step helps you see the structure and patterns of language clearly.

How to Transcribe:

• Write each utterance (a single complete thought) on a separate line.

• Include errors, fillers, and pauses—they provide valuable information.

• Mark unintelligible words with “XXX” or similar notation.

• Note the adult’s responses briefly for context.

Example:
Child: “Him goed to the park and runned fast.”
Adult: “Oh, he ran fast?”
Child: “Yeah, he runned to get the ball.”

💬 SLP insight: You don’t need fancy software—just be consistent. Tools like SALT, SUGAR, or even a spreadsheet can make counting and coding easier.

Step 3: Analyze Key Language Features

This is where the magic happens. Analyzing the sample reveals how the child truly uses language. Focus on four main areas:

1. Mean Length of Utterance (MLU)

MLU measures the average number of morphemes (word parts) in each utterance. It helps estimate grammatical development.

• Example: “The doggies running” = 4 morphemes (The + dog + -s + running).

• Compare the child’s MLU to age-based norms.

2. Syntax and Grammar

Look for sentence variety, verb tense accuracy, and pronoun use.

• Are sentences simple or complex?

• Are there frequent omissions (e.g., “She happy” instead of “She is happy”)?

3. Vocabulary and Word Choice

Examine the range and richness of vocabulary.

• Count the number of different words (NDW) used.

• Identify how often the child repeats or substitutes vague words (“thing,” “stuff,” “that one”).

4. Pragmatics and Storytelling

Observe how the child uses language for interaction:

• Do they stay on topic?

• Can they tell a simple story or sequence events?

• Do they use appropriate turn-taking and eye contact?

Pro tip: Use both qualitative (descriptive) and quantitative (numerical) analysis. Together, they give a complete picture of communication strengths and needs.

Step 4: Interpret and Apply the Results

Once you’ve collected and analyzed the data, the final step is to interpret what it means for the child’s communication development—and plan next steps.

Ask yourself:

• Is the child’s MLU below, within, or above age expectations?

• Which grammar structures need more practice?

• How varied is their vocabulary compared to peers?

• Does the child show age-appropriate storytelling or conversation skills?

From there, you can:

• Set therapy goals (e.g., increase MLU, use past-tense verbs, expand vocabulary).

• Share results with parents or teachers in simple, jargon-free language.

• Use future language samples to measure progress over time.

Example:
If a 5-year-old consistently says “Him goed” instead of “He went,” therapy might focus on irregular past-tense verbs.

Goal: Turn analysis into actionable steps that guide intervention and support everyday communication.

Extra Tips for Success

• Keep it natural: The best samples come from real conversation, not drills.

• Be patient: Children may need time to warm up before talking freely.

• Compare across contexts: Try collecting samples during play, conversation, and storytelling for a full picture.

• Collaborate: Teachers and caregivers can provide insight about how the child communicates in different environments.

SLP insight: Language sampling isn’t just for therapy—it’s also a great progress-monitoring tool for Individualized Education Programs (IEPs).

FAQs

How long does a language sample analysis take?
Collecting, transcribing, and analyzing a short sample can take 30–60 minutes. Practice and templates make the process much faster over time.

Do I need special software?
No. While tools like SALT and SUGAR can automate counting, a simple spreadsheet or word processor works fine.

Can parents do language samples at home?
Yes! Parents can record short play sessions and share them with an SLP to support assessment and therapy planning.

Every Word Tells a Story

Language sample analysis is like holding up a mirror to a child’s communication—it reveals their voice, patterns, and growth in a way no test can. With just a few steps, you can gather valuable insights that guide therapy, classroom instruction, and home support.