Common Errors for /r/

Use the Entire World of R Book of Elicitation Techniques and the Entire World of R Advanced Screening to determine /r/ misproductions

Sound Common errors Expected age of mastery

prevocalic /r/

substitution of w/r as in wed for red

age 5

prevocalic /r/

substitution of v for /r/

Never acceptable  at any age.

vocalic /r/

vowelization ca for car

age 5

initial /r/ blends

cluster reduction – ti for tree

age 5