DCD vs Childhood Apraxia of Speech: The Difference

Two very different challenges that share a similar root word — both are about how the body learns to plan movement, but one shapes how a child moves, the other how a child speaks.

In short

Developmental Coordination Disorder (DCD) affects how a child plans and carries out physical movements — things like running, dressing, using cutlery or catching a ball feel clumsy and harder to learn than expected. Childhood Apraxia of Speech (CAS) is a motor-speech difficulty — the brain struggles to plan the precise movements of the lips, tongue and jaw needed to say sounds and words clearly, even though the muscles themselves are strong. A child can have one, the other, or both — and both respond well to the right, skill-building therapy.

Telling them apart

Developmental Coordination Disorder (DCD) is about whole-body and hand movement:

• Clumsiness — bumping into things, frequent falls, dropping objects
• Difficulty with everyday motor tasks — buttons, zips, laces, using a spoon or pencil
• Trouble learning new physical skills like riding a bike or catching a ball
• Movements look effortful or poorly coordinated rather than smooth

Childhood Apraxia of Speech (CAS) is specifically about speaking:

• Inconsistent errors — the same word said differently each time
• Groping or visible effort to position the mouth for sounds
• Difficulty stringing sounds and syllables together, especially in longer words
• Speech that is hard to understand, even though the child clearly knows what they want to say

The key difference: DCD is movement of the body; CAS is movement for speech. Both are difficulties of motor planning (telling the body what to do), not weakness or low intelligence. Because they share this planning root, some children show features of both — which is exactly why a skilled, joined-up assessment matters.

When to seek a check

Seek a developmental check if your child is markedly clumsier than peers, struggles with everyday self-care movements, is very hard to understand for their age, or seems to know a word but cannot say it consistently. The earlier the support, the more confidently a child builds these skills — and a proper assessment is what tells you which difficulty (or combination) you are looking at.

The Pinnacle way

AbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from an app, checklist or online form. Our clinicians look carefully at both motor and speech planning to build a precise profile and the right plan, drawing on occupational therapy for coordination and daily skills and speech therapy for motor-speech work. You can learn more about how the AbilityScore® is assessed or start here.

Trusted sources

WHO ICD-11 framing of developmental motor coordination disorder; American Speech-Language-Hearing Association guidance on Childhood Apraxia of Speech and motor-speech difficulties; American Academy of Pediatrics (HealthyChildren.org) developmental guidance.

Next step — Unsure which challenge fits your child? Book an assessment with a Pinnacle clinician for a clear, caring answer.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.