International Committee

RADLD is coordinated by professionals from the Australia, Canada, Hong Kong, UK & USA who volunteer their time to raise awareness of Developmental Language Disorder.

  • Lisa Archibald
    Lisa Archibald

    Associate Professor | School of Communication Sciences & Disorders and Department of Psychology, The University of Western Ontario | CANADA

    Lisa Archibald is an Associate Professor in the School of Communication Sciences and Disorders at The University of Western Ontario. One focus of her research is on links between language and working memory. She also employs a practice-based research approach to partner with school-based speech-language pathologists in exploring services for children with DLD. 

  • Karla McGregor
    Karla McGregor

    Director | Center for Childhood Deafness, Language & Learning - Boystown National Research Hospital & Professor Emerita | The University of Iowa | USA

    Karla McGregor, Ph.D., CCC-SLP, conducts research on Developmental Language Disorder at Boys Town National Research Hospital in Nebraska, USA where she also directs the Center for Childhood Deafness, Language & Learning. Her research, which focuses mainly on the word learning abilities of children and adults with DLD,  is funded by the National Institutes of Health and the National Science Foundation. Dr. McGregor is a Professor Emerita at the University of Iowa.

  • Stephen Parsons
    Stephen Parsons

    Chair | NAPLIC | UK

    Stephen Parsons is a Speech and Language Therapist, trainer and author of practical language development resources for teachers and SaLTs. Stephen graduated in Speech Pathology from Flinders University in Australia, before attaining an MSc in Speech and Language Therapy from City University, London in 2000.  From 1996-2017 Stephen worked as a Speech and Language Therapy Service Manager in Hackney and the City of London. He currently serves as Chair of NAPLIC, the association for professionals working with children and young people with developmental language disorder.  He is active on Twitter at @WordAware.

  • Natalie Turner

    Marketing & Fundraising Advisor | Speech & Language Development Australia | AUSTRALIA

  • Anita Mei-Yin Wong
    Anita Mei-Yin Wong

    Associate Professor | Division of Speech and Hearing Sciences, The University of Hong Kong | CHINA

    Anita Mei-Yin Wong is an Associate Professor at the Division of Speech and Hearing Sciences at the Faculty of Education, the University of Hong Kong. She has practiced as a speech-language pathologist in the United States and in Canada. Dr. Wong conducts research on the manifestations of DLD in Cantonese-Chinese speaking children and the implications of DLD on reading development. She actively engages in activities to raise awareness of language disorders in Hong Kong and mainland China.​

  • Shaun Ziegenfusz
    Shaun Ziegenfusz

    Manager, Research & Advocacy | Speech & Language Development Australia | AUSTRALIA

    Shaun Ziegenfusz is a certified practising speech-language pathologist with a Master of Special Education.  In his current role, Shaun is responsible for research into the delivery of education and therapy programs for children with Developmental Language Disorder (DLD) and developing services to ensure optimal outcomes.  Shaun is currently researching the educational needs of students with DLD from the perspective of key stakeholders as a Master of Philosophy candidate at Griffith University.

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