• About
  • What we do
    • Events
    • Membership
    • Learning Platform
    • Latest news
    • Meet the team
  • CAS
    • Diagnosis of CAS
    • CAS Assessment
    • Reading, literacy and CAS
    • Lived Experience CAS
    • CAS Therapy
    • Genetics and CAS
  • AOS
    • AOS PPAOS Therapy
    • Acquired AOS Diagnosis
    • Lived experience AOS
  • PPAOS
    • PPAOS Diagnosis
    • Lived experience PPAOS
  • Other conditions
  • More
    • About
    • What we do
      • Events
      • Membership
      • Learning Platform
      • Latest news
      • Meet the team
    • CAS
      • Diagnosis of CAS
      • CAS Assessment
      • Reading, literacy and CAS
      • Lived Experience CAS
      • CAS Therapy
      • Genetics and CAS
    • AOS
      • AOS PPAOS Therapy
      • Acquired AOS Diagnosis
      • Lived experience AOS
    • PPAOS
      • PPAOS Diagnosis
      • Lived experience PPAOS
    • Other conditions
  • About
  • What we do
    • Events
    • Membership
    • Learning Platform
    • Latest news
    • Meet the team
  • CAS
    • Diagnosis of CAS
    • CAS Assessment
    • Reading, literacy and CAS
    • Lived Experience CAS
    • CAS Therapy
    • Genetics and CAS
  • AOS
    • AOS PPAOS Therapy
    • Acquired AOS Diagnosis
    • Lived experience AOS
  • PPAOS
    • PPAOS Diagnosis
    • Lived experience PPAOS
  • Other conditions
Speech Apraxia UK

Giving a voice to individuals with apraxia of speech

Giving a voice to individuals with apraxia of speechGiving a voice to individuals with apraxia of speechGiving a voice to individuals with apraxia of speech

CAS Assessment Tools and Motor Speech Assessments

DEMSS

prosody measures

VMPAC-R

The Dynamic Evaluation of Motor Speech Skill (DEMSS) is a specialized, criterion-referenced assessment tool designed by Edythe A. Strand and Rebecca J. McCauley to help diagnose childhood apraxia of speech (CAS) in children aged 3 and older with severe speech impairments. 



Key Features of DEMSS

  • Target Audience: Children 3+ with limited sound inventories, poor intelligibility, or suspected motor speech disorders.
  • Core Purpose: To differential-diagnose childhood apraxia of speech from other developmental speech sound disorders.
  • Method: Uses dynamic cueing and imitation tasks to evaluate how a child’s speech changes with different levels of support. 


What the Test Evaluates

  • Articulatory Accuracy: How well the child produces target consonants and vowels.
  • Consistency: Error patterns across repeated attempts.
  • Prosody: Lexical stress and speech rhythm accuracy.
  • Responsiveness to Cues: Improvement when given tactile, auditory, or simultaneous production prompts. 

mazon.com.auDynamic Evaluation of Motor Speech Skills (DEMSS) ManualDynamic Evaluation of Motor Speech Skill (DEMSS) is a criterion-referenced assessment designed to help with differential diagnosis of speech sound disorders inScribdDEMSS: Validity in Motor Speech Assessment | PDF - Scribdvariety of etiologies and represent impairment at a least attempt imitation. ... this challenge. The DEMSS is intended to assist in interactive (Goffman, 2004;CliffsNotesDEMSS protocol (pdf) - CliffsNotesThe DEMSS Manual is available from Brookes Publishing Co.; for inquiries, contact rights@brookespublishing.com Dynamic Evaluation of Motor Speech Skill Name ___Brookes Publishing Co.Dynamic Evaluation of Motor Speech Skill (DEMSS) ManualDynamic Evaluation of Motor Speech Skill (DEMSS) Manual by Edythe A. Strand, Ph.D., CCC-SLP Emeritus Professor, Mayo College of Medicine Emeritus Consultant, De...    

VMPAC-R

prosody measures

VMPAC-R

prosody measures

prosody measures

intelligibility measures

intelligibility measures

intelligibility measures

intelligibility measures

speech sampling

intelligibility measures

phonetic inventories

phonetic inventories

intelligibility measures

phonetic inventories

stimulability

language assessment

dynamic assessment

If customers can’t find it, it doesn’t exist. Clearly list and describe the services you offer. Also, be sure to showcase a premium service.

dynamic assessment

language assessment

dynamic assessment

language assessment

language assessment

parent-report measures

parent-report measures

parent-report measures

parent-report measures

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phonological awareness

parent-report measures

phonological awareness

no single "apraxia test" that independently establishes CAS.

About Us

REST specific

REST specific

At Speech Apraxia International – Raising Awareness and Providing Support for Apraxia of Speech Speech Therapy, our goal is to help individuals improve their communication abilities. We offer a variety of services tailored to each individual's needs and work closely with families to achieve the best outcomes.

REST specific

REST specific

REST specific

Our Approach

REST specific

Our Approach

We believe in a collaborative approach to therapy, working closely with families and other healthcare professionals to ensure the best outcomes for our clients. Our therapists are highly trained and passionate about helping individuals achieve their communication goals.

Resources

Contact Us

Our Approach

We have compiled a list of resources to provide our clients with additional support. From helpful articles to fun activities, our resources are designed to keep clients engaged and motivated throughout their therapy journey.

Contact Us

Contact Us

Contact Us

If you have any questions or would like to schedule an appointment, please don't hesitate to contact us. We are always happy to help and look forward to hearing from you.

FAQ

Contact Us

Contact Us

We have compiled a list of frequently asked questions to provide our clients with additional information about our services. If you have any further questions, please don't hesitate to contact us.


Copyright © 2025 Speech Apraxia International. All rights reserved.

Speech Apraxia International participates in the Amazon Associates Programme and may earn a small commission from qualifying purchases or other promoted goods and services. This helps support our work.

Information on this page is for general education and guidance only and is not a substitute for individual professional, legal, clinical or educational advice.. SEND and EHCP information relates mainly to England; arrangements differ elsewhere in the UK and internationally. Support should always be based on the individual needs of the child or young person.

We aim to keep information accurate and current, but guidance, legislation and professional recommendations may change. Please check official sources or seek appropriate professional advice where needed.

External links are provided for information only and do not necessarily imply endorsement.


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