Why Can’t People Understand My Child: Understanding Speech Clarity

“My three-year-old talks all the time, but only I can understand what they’re saying.”

“The teacher says they can’t make out what my child is saying in class.”

“My child gets so frustrated when people ask them to repeat themselves.”

If these concerns sound familiar, you’re not alone. Speech clarity—or intelligibility—is one of the most common reasons parents seek speech pathology support. When a child’s speech is difficult to understand, it affects their ability to make friends, participate in learning, ask for help, and express their wonderful ideas and personality.

Let me help you understand what affects speech clarity, when to be concerned, and how speech pathology can help.

What Is Speech Intelligibility?

Speech intelligibility simply means how well others can understand what your child is saying. According to Speech Pathology Australia’s developmental guidelines:

• At 2 years: About 50% of your child’s speech should be understood by familiar adults
• At 3 years: About 75% should be understood by familiar adults
• At 4 years: Most speech should be understood by unfamiliar adults
• By 5 years: Speech should be almost completely intelligible (90-100%)

These are guidelines, and there’s some normal variation. However, if your child’s speech is significantly less clear than these benchmarks, assessment is recommended.

Why Speech Clarity Matters

Clear speech is essential for:

• Social connections: Making and keeping friends
• Learning: Participating in class discussions and group work
• Self-advocacy: Asking for help or expressing needs
• Confidence: Feeling comfortable communicating
• Literacy: Clear speech supports learning to read and spell

Studies demonstrate that children with persistent speech sound disorders are at increased risk for reading and spelling difficulties later (Lewis et al., 2015). Early intervention improves both speech and literacy outcomes.

What Causes Unclear Speech?

There are several reasons why a child’s speech might be difficult to understand:

1. Articulation Disorders

Articulation refers to how we physically produce speech sounds using our lips, tongue, jaw, and teeth. Children with articulation disorders have difficulty with the motor movements needed to make certain sounds.

Common examples:

• Saying “wabbit” for “rabbit” (w/r substitution)
• Saying “thun” for “sun” (th/s substitution – a lisp)
• Difficulty with specific sounds in all positions (beginning, middle, end of words)

Articulation errors are usually consistent—the child makes the same error pattern every time they try to produce that sound.

2. Phonological Processes

Phonological processes are patterns children use to simplify adult speech as they’re learning to talk. All children use these patterns when they’re young, but some children continue using them past the age when they should have resolved.

Common phonological processes:

• Fronting: Making sounds in the front of the mouth instead of the back (“tat” for “cat,” “doe” for “go”)
• Stopping: Replacing long sounds with short sounds (“pish” for “fish,” “dop” for “stop”)
• Final consonant deletion: Leaving off the last sound of words (“ca” for “cat,” “do” for “dog”)
• Cluster reduction: Simplifying words with two consonants together (“poon” for “spoon,” “boo” for “blue”)

When multiple phonological processes are present, speech becomes very difficult to understand because many words sound the same.

3. Motor Speech Disorders

Motor speech disorders affect the planning, coordination, and execution of speech movements.

Childhood Apraxia of Speech (CAS):

This is a motor planning disorder where the brain has difficulty planning and programming the movements needed for speech. Children with CAS know what they want to say but struggle to coordinate their mouth movements.

Signs of CAS include:

• Inconsistent errors (saying a word differently each time)
• Difficulty imitating sounds or words
• Groping or searching with their mouth when trying to speak
• More difficulty with longer words or sentences
• Better understanding than expression

Dysarthria:

This involves weakness or poor coordination of the speech muscles. Speech may sound slurred or imprecise, and voice quality may also be affected.

4. Structural Issues

Sometimes unclear speech is related to physical structure or sensory/perceptual factors:

• Tongue-tie (ankyloglossia) limiting tongue movement
• Cleft palate affecting sound production
• Dental issues affecting certain sounds
• Surgery or trauma affecting speech production
• Hearing impairment

These issues often require collaboration with other professionals (ENT specialists, dentists, orthodontists).

What You Might Notice at Home

Parents are often the first to recognize speech clarity concerns. You might notice:

In younger children (2-3 years):

• Very limited speech sounds (only using a few consonants)
• Lots of gestures and pointing because speech isn’t effective
• Frustration when trying to communicate
• Difficulty being understood even by family
• Dropping many sounds from words

In older children (4+ years):

• Still making sound errors that peers have outgrown
• Being asked to repeat themselves frequently
• Avoiding talking in certain situations
• Difficulty with literacy tasks (if school-aged)
• Frustration or embarrassment about their speech

The Importance of Assessment

If you’re concerned about your child’s speech clarity, a comprehensive speech pathology assessment can:

Identify the nature of the problem:

• Is it articulation, phonological, or motor-based?
• Which sounds are affected?
• Are there patterns to the errors?
• How severe is the difficulty?

Determine the impact:

• How does it affect communication in daily life?
• Is it impacting social relationships or learning?
• How does the child feel about their speech?

Guide treatment:

• What evidence-based approach is most appropriate?
• What’s the prognosis?
• How can parents support progress?

At Holistic Speech Pathology, our assessment includes:

• Detailed speech sound analysis through play and structured tasks
• Oral motor examination
• Phonological pattern analysis
• Assessment of speech intelligibility in different contexts
• Analysis of language development
• Evaluation of pre-literacy skills and literacy skills (if age-appropriate)
• Understanding functional impact on daily life

Evidence-Based Treatment Approaches

The good news is that speech therapy is highly effective for speech sound disorders. The approach we use depends on what our assessment reveals and there is a good evidence base for multiple approaches.

For all approaches, therapy is most effective when:

• It’s individualized to your child’s specific needs
• Practice happens frequently (both in therapy and at home)
• Activities are engaging and motivating
• Parents are involved and supported
• Progress is monitored and approaches adjusted as needed

How Parents Can Help at Home

Between therapy sessions, parents play a crucial role in supporting speech development:

1. Model, don’t correct

When your child mispronounces a word, simply repeat it back correctly without asking them to say it again. For example:

• Child: “I saw a tar!”
• Parent: “Yes, you saw a car! What colour was the car?”

2. Create opportunities for practice

Use daily routines as natural practice opportunities:

• Naming foods at mealtime
• Labelling toys during play
• Describing what you see on walks
• Reading books together and talking about pictures

3. Reduce pressure

Avoid:

• Constantly correcting speech errors
• Asking them to “say it properly”
• Making them repeat words over and over
• Drawing attention to their speech difficulties in front of others

4. Be an engaged listener

• Give your child your full attention when they’re speaking
• Use context clues to help you understand
• Ask for clarification respectfully if needed
• Show that you value what they’re saying, not just how they’re saying it

5. Work on therapy targets

Your speech pathologist will give you specific activities and words to practice. Consistent practice at home significantly accelerates progress.

When to Seek Help

Speech Pathology Australia and ASHA recommend seeking assessment if:

• Your child is not meeting age-expected speech intelligibility levels
• Their speech is significantly less clear than same-age peers
• They’re showing frustration about not being understood
• Teachers or other adults are having difficulty understanding them
• They’re starting to avoid speaking situations
• There are concerns about school readiness or literacy

Important: Don’t wait to “see if they grow out of it.” While some speech errors do resolve naturally, many don’t. Research consistently shows that early intervention leads to better outcomes and prevents secondary issues like literacy difficulties or reduced confidence.

The Path Forward

At Holistic Speech Pathology, we understand how frustrating it is when your child has so much to say but struggles to be understood. Our goal is to:

• Accurately identify what’s affecting your child’s speech clarity
• Use evidence-based approaches to target the underlying issue
• Support you in helping your child practice at home
• Celebrate progress along the way
• Build your child’s confidence as a communicator

Clear speech opens doors—for learning, for friendships, for expressing ideas, and for confidence. With the right support, your child can develop the clear speech they need to share their thoughts, stories, and personality with the world.

If you’re concerned about your child’s speech clarity, Holistic Speech Pathology offers comprehensive assessment and evidence-based therapy for speech sound disorders.

Contact us at info@holisticsp.com.au or book with us to discuss your child’s needs.