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This product features:
• Two infographics that detail the age of acquisition of speech sounds in English (US) and Spanish using IPA (International Phonetic Alphabet) symbols.
• A quick review of IPA symbols through word examples organized by stage and age range of expected speech sounds.
The developmental norms are based on data using a 90% mastery criterion from two review studies, McLeod and Crowe (2018) and Crowe and McLeod (2020).