William Harn


Office: Speech and Hearing Sciences Building, Room 120-G
Phone: 409-880-8229
Email: william.harn@lamar.edu 


  • Ph.D., Communication Disorders and Sciences, Southern Illinois University at Carbondale, 1988
  • M.A., Communication Disorders, Northern Michigan University, 1977
  • B.S., Speech Pathology and Audiology, Illinois State University, 1975


Phonetics; Speech and Language Disorders in Children with Developmental Disabilities; Neurogenic Communication Disorders in Children and Adults

Board Certification/Licensure

  • American Speech-Language-Hearing Association (CCC-SLP)
  • Texas state license

Professional Affiliations

  • American Speech-Language-Hearing Association
  • Texas Speech-Language-Hearing Association
  • Phi Kappa Phi Honor Society


Research Methods (Graduate)
Motor Speech Disorders (Graduate)
Phonetics (Undergraduate)
Introduction to Research (Undergraduate)
Introduction to Communication Disorders (Undergraduate)

Research Interests

Application of Usage-Based Models of Language to Language Assessment and Intervention

Recent Publications

  • Bellon-Harn, M., Morris, L., Manchaiah, V., & Harn, W. (in press). Digital parent-implemented interventions for parents of children with primary speech sound and/or language disorders: A scoping review.  Submitted to Child Language Teaching and Therapy.
  • Manchaiah, V., Bellon-Harn, M., Dockens, A., Azios, J., & Harn, W. (2019). Communication between audiologist, patient, and patient’s family members during initial audiology consultation and rehabilitation planning sessions: A descriptive review. Journal of the American Academy of Audiology, 30, 810-819.
  • Harn, W., & Bellon-Harn, M. (2014). Commentary: Studies examining grammar interventions with children with SLI in situ are critical to establishing effectiveness. Evidence-Based Communication Assessment and Intervention, 8, 35-39.