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Speech Sound Development
This chart shows acquisition of speech sounds based on the ages when 90% of English speaking children produce single sounds at word level. Regional and community dialects may cause some differences.
Crowe, K., & McLeod, S. (2020). Children’s English consonant acquisition in the United States: A review. American Journal of Speech-Language
Pathology. https://doi.org/10.1044/2020_AJSLP-19-00168
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