Average age estimates and upper age limits of customary consonant production. The solid bar corresponding to each sound starts at the median age of customary, articulation; it stops at an age level at which 90% of all children are

Updated August 2021. The following chart shows acquisition of speech sounds based on the ages when 90% of English speaking children produce single sounds at the word level. The standard deviation for the Crowe and McLeod* normative data is 6 months to 18 months depending on the specific speech sound. Some sound differences may be part of a student’s …

11 hàng · Jan 23, 2013 · Speech sound development varies greatly between boys and girls as well as between ages. Below ...

The chart below represents the age at which children are expected to have developed each speech sound. Children who have not achieved one or more of these sounds by the age indicated are likely to experience a speech delay or disorder, and it is recommended that you contact a Speech Pathologist for advice. If you have any questions or concerns about your child’s …