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   FIRST YEARS > Listening & Spoken Language Development & Intervention  > Speech Sound Development Chart
Sources:
  • Estabrooks, W. (1998) Cochlear Implants for Kids. Washington DC: Alexander Graham Bell Association for the Deaf and Hard of Hearing.
  • Sander, E. K. (1972) When are speech sounds learned? Journal Speech Hear Disorder 37(1):55-63.
Horizontal bars indicate a range of typical sound development in children.
Bobby WorldWide Approved 508
Alexander Graham Bell Association | UNC-CH Division of Speech and Hearing Sciences

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