David Ertmer, Ph.D
B.S., 1973, Marquette University
M.S., 1976, The University of Wisconsin-Milwaukee
Ph.D., 1994 Purdue University
David Ertmer joined the department of Speech, Language, and Hearing Sciences at Purdue University in the fall of 1995. He has clinical experience as a speech-language pathologist in the public schools in Wisconsin and Colorado and as a clinical supervisor at Purdue University. He was awarded a Certificate of Clinical Competence by the American Speech-Language and Hearing Association in 1978. After receiving his doctorate in Speech Sciences in 1994, he served as a Visiting Assistant Scientist at the Indiana University School of Medicine; participating in studies of speech perception, speech production, and language skills of deaf children who received cochlear implants. His research interests focus on speech and language development in children who have received cochlear implants at a very young age. He also has interests in normal and disordered phonology and clinical methods in speech-language pathology. Dr. Ertmer regularly teaches courses in aural rehabilitation, and clinical practices in communication disorders.
In 2001, Dr. Ertmer developed a website to provide information about vocal development for students, clinicians, and parents. Typically developing infants produce increasingly complex and speech-like sounds before they say true words. These non-meaningful sounds can serve as an index of early speech learning if professionals and parents are aware of three basic levels of development. The website contains definitions and audio examples of precanonical, canonical, and postcanonical level vocalizations and opportunities to complete a self-check of listening and classification skills. Webpages also contain results from Dr. Ertmer’s research into early vocal development following cochlear implantation, intervention strategies to stimulate vocal development and spoken language in very young children, video examples of parents using language stimulation techniques with children who have cochlear implants, and references related to early speech and language development. The address for the website is:
Ertmer, D. J. (2005). The Source for Children with Cochlear Implants . East Moline, IL: LinguiSystems, Inc.
Ertmer, D. J. , Young, N. M., & Nathani, S., (2007) . Profiles in vocal development in young cochlear implant recipients. Journal of Speech, Language, and Hearing Research, 50 , 393-407.
Nathani S., Ertmer, D. J., & Stark, R. E. (2006) . Assessing vocal development in infants and toddlers. Clinical Linguistics and Phonetics, 20, 351-369.
Ertmer, D. J. (2004) . How well can children recognize speech patterns in spectrograms? Comparisons by age and hearing status. Journal of Speech, Language, and Hearing Research 47, 484-495.
Ertmer, D.J., Strong, L., & Sadagopan, N. (2003) . Beginning to communicate after cochlear implantation: Oral language development in a young child. Journal of Speech, Language, and Hearing Research, 46, 328-340.
Goffman, L., Ertmer, D. J., & Erdle, C. (2003) . Changes in speech production in a child with a cochlear implant: Acoustic and kinematic evidence. Journal of Speech, Language, and Hearing Research, 45 , 891-901. [
Ertmer, D. J. , Young, N., Grohne, K., Mellon, J., Johnson, C., Corbett, K., & Saindon, K. (2002) . Vocal development in young children with cochlear implants: Assessment and implications for intervention. Language, Speech, and Hearing Services in the Schools, 33, 185-196.
Wilkins, M., & Ertmer, D. J. (2002) . Introducing young children who are deaf or hard of hearing to spoken language: Child'sVoice, an oral school. Language, Speech, and Hearing Services in the Schools, 33 , 197-205.
Ertmer, D. J. , Leonard, J. S., & Pachuilo, M. P. (2002) . Communication intervention for children with cochlear implants: Two case studies. Language, Speech, and Hearing Services in the Schools, 33, 206-218.
Ertmer, D. J. (2001) . Emergence of a vowel system in a young cochlear implant recipient. Journal of Speech, Language, and Hearing Research, 44 , 803-813.
Ertmer, D. J. , & Mellon, J. A. (2001) . Beginning to talk at 20 months: Early vocal development in a young cochlear implant recipient. Journal of Speech, Language, and Hearing Research, 44 , 192-206.
Ertmer, D. J. , & Maki, J. E. (2000) . A comparison of speech training methods for deaf adolescents: Spectrographic vs. non-instrumental instruction. Journal of Speech, Language, and Hearing Research, 43 , 1509-1523
Ertmer, D. J., & Ertmer , P. A. (1998) . Constructivist strategies in phonological intervention: Facilitating self-regulation for carryover. Language, Speech, and Hearing Services in the Schools, 29 , 67-75.