Parents often ask their child’s Fort Myers speech therapist whether a preschooler’s speech errors will follow them into the classroom. The honest answer is the majority of children with speech sound differences learn to read without much difficulty. But a smaller group of kids may have a measurable risk into first grade — and researchers now understand fairly well which children those are. This knowledge can transform vague concerns into something a family can actually act on.

The Bridge Between Talking and Reading

Reading requires a child to break a spoken word into its individual sounds and match those sounds to letters. The skill that makes this possible is called phonological awareness, and it develops before formal reading instruction begins.

Phonological awareness follows a rough order. Children first notice rhyme and the beat of syllables, then isolate the first sound in a word, then blend sounds into a word, and finally segment a whole word into its parts. A kindergartner who can tell you that “cat” starts with /k/ and ends with /t/ is doing the work that decoding will require in a few months.

Note that children does not analyze words using the sounds in the air. They analyze words using the sound representations stored in their own mind. If those stored representations are fuzzy or organized in an unusual way, the analysis gets harder, no matter how bright the child is or how much they love books.

Not All Speech Errors Carry the Same Weight

Clinicians distinguish between articulation errors and phonological errors. An articulation error involves difficulty producing a particular sound, like a lisped /s/ or a /w/ substituted for /r/. The child’s underlying sound system is intact. The mouth simply has not caught up.

A phonological error is rule based and affects whole categories of sounds. A child who drops every final consonant, so that “cat,” “cap,” and “can” all come out as “ca,” is not struggling with individual muscles. They are operating on a pattern that simplifies the sound system itself.

Research published in the Journal of Speech, Language, and Hearing Research followed 123 children and analyzed their speech errors at ages five and six against their literacy at ages seven to nine. Phonological errors, but not articulation errors, predicted phonological awareness, letter knowledge, and later literacy, even after accounting for the children’s language skills. Sequencing difficulty, meaning trouble organizing sounds in order, showed the strongest relationship of all.

For a family whose kindergartner has a charming lisp and nothing else, that finding is genuine reassurance. For a family whose child simplifies whole patterns of sounds, it is a reason to look closely at preliteracy skills now rather than waiting.

The Second Risk Factor Is Language, Not Speech

The other thread in this literature is co-occurring language difficulty, meaning weakness in vocabulary, grammar, or comprehension alongside the speech errors. Researchers examined kindergartners with a history of speech sound disorder and found that current speech difficulty and language impairment each had separate, additive effects on phonological awareness. Notably, a history of speech sound disorder affected phonological awareness at age six even when the speech itself had resolved.

In another study, researchers followed the same children to ages seven through nine, both persistent speech difficulty and language impairment still predicted phonological awareness, but only language impairment predicted actual reading outcomes.

Another longitudinal study followed children from age four and a half to six and a half and found that speech difficulty at the older age was strongly tied to weak phonological awareness and literacy, but largely because of the language difficulties traveling alongside it. Research on children with isolated speech sound disorder has generally found intact reading with a residual weakness that shows up in spelling rather than decoding.

The practical translation is that a speech sound disorder rarely operates alone as a reading risk. It is the combination that deserves attention.

Why the Timing Matters

The critical age hypothesis holds that speech difficulties become a risk factor for reading when they persist into the period when a child is learning to read. Researchers have found that speech difficulty at school entry posed a barrier regardless of whether language impairment was also present.

That is why a concern noticed in kindergarten can surface as a reading concern in first grade. Kindergarten leans on oral language and letter recognition, and a child can compensate. First grade asks that same child to decode, and the compensations stop working. The goal is the same, but the necessary skills are different.

Family history matters here too. A parent or sibling with dyslexia raises a child’s risk independently, so make sure to mention it to your child’s Fort Myers speech therapist if you have not already.

What to Watch and What to Do

Around ages five and six, watch to see whether your child can hear rhyme, identify the first sound in a spoken word, blend two or three sounds into a word, and connect letters to their sounds. Difficulty in those areas alongside phonological speech errors is the pattern worth evaluating, and it is worth evaluating early rather than waiting for a report card.

A skilled evaluation looks past sound production. At FOCUS Therapy, assessment considers the type of errors a child makes, their vocabulary and grammar, and their phonological awareness together, because those pieces predict different things. Treatment can address them together as well. A growing body of work supports building preliteracy targets directly into speech sessions, so a child practicing a sound is also practicing hearing it, isolating it, and matching it to print. The American Speech-Language-Hearing Association’s practice guidance treats phonological awareness as part of the scope of speech sound intervention.

Your child’s current speech errors does not automatically mean they will have trouble learning to read. But for those who need more support, the window when help works best is open right now, before decoding instruction begins in earnest.

To schedule an evaluation with a Fort Myers speech therapist at FOCUS Therapy, call (239) 313-5049.

FOCUS Therapy offers pediatric speech therapy, occupational therapy, and ABA Therapy in Fort Myers, Florida. Call (239) 313.5049 or Contact Us online.

Additional Resources:

Choi, K. R., et al. (2022). “Patient Outcomes After Applied Behavior Analysis for Autism Spectrum Disorder.” Journal of Developmental & Behavioral Pediatrics. Read the open-access study on PubMed Central.

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