Learn the types, tell profiles apart, and choose an approach, with the child’s languages and dialects in mind from the start.
This hub brings together everything on Bilingual SLT about speech sound disorders (SSDs) in children. It follows the order of clinical reasoning: understand how SSDs are classified, compare the profiles that are easy to confuse, then weigh the evidence for treatment approaches.
It is written for speech and language therapists, speech-language pathologists and students, especially those working with bilingual children and with Arabic and English.
A reference to each SSD, from phonological delay to childhood apraxia of speech, cleft-related speech and hearing-related speech differences. Every entry uses the same headings: what it is, key features, what it’s often confused with, bilingual and dialect considerations, and how it’s identified. It also explains how the two main classification systems, ASHA’s and Dodd’s, fit together.
An interactive classification tree that branches from functional and organic SSDs down to each profile. Choose any two profiles to compare them feature by feature, with notes on what helps separate them, or view every profile in one matrix.
The tree and the comparison of CAS and inconsistent phonological disorder are open to everyone. A free account opens every other comparison and the full matrix.
A reference to the main intervention approaches for SSDs and the evidence behind them, alongside the Approach Finder. The Finder narrows your options to one or two approaches, explains why, and says what findings would change the recommendation.
The approaches reference and a full worked example of the Finder are open to everyone. A free account lets you run the Finder with your own findings.
An error only matters clinically if it isn’t expected in the child’s dialect or explained by influence from their other language. So every part of this hub starts there. Assess the child’s languages as comprehensively as you can, using appropriate methods for each, judge errors against norms for the variety spoken at home, and remember that a disorder can look different in each language.
Once errors are judged meaningful, choosing an approach follows the same clinical reasoning as for any child. Delivering it takes account of the child’s language experience, how skills may carry across languages, and the family’s priorities.
These pages and tools support clinical reasoning. They don’t diagnose. Classification systems are working descriptions, mixed presentations are common, and no single feature or task confirms a diagnosis. Decisions rest on a full assessment by a qualified clinician.
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The reference pages stay open to everyone. A free account opens the interactive tools and printables, so you can work through the profiles and approaches with your own assessment findings.
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Written by Bodour Imseeh, Speech and Language Therapist, BSc (Hons) Speech and Language Therapy, MSc Speech Difficulties.
Last reviewed: 30 October 2026. Sources are listed on each page.
