Check-out our tutorials in Language, Speech, and Hearing Services in the Schools (LSHSS) to learn how to (1) do the complexity approach to treatment of speech sound disorders; (2) use words to boost speech sound learning; (3) incorporate language sample analysis into your practice. Also, you may be interested in our clinical forum in ASHA Perspectives on Speech Sound Disorders in Schools: Who qualifies? and the episode on the SeeHearSpeak podcast where we talk about this issue.
The server that housed our child calculator (Storkel & Hoover, 2010) had to be decommissioned and the program needed to be re-written to move it to a new server. Unfortunately, the child calculator is no longer available because we did not have funding to support re-development of the calculator. Phonotactic probability and neighborhood density values based on an adult lexicon are availabe at https://calculator.ku.edu/.