Clinical Research Directory

Inclusion Criteria: 1. Age: Participants must be between the ages of 7;0 and 11;11. 2. /s/ Errors: Participants must experience difficulty on /s/. 3. English Language Status: Participants must speak English as a dominant language and must have begun learning English before age 3 4. Hearing Status: Participants must have no reported hearing loss. 5. Neurodevelopmental Status: Participants must have no reported neurodevelopmental diagnosis. A reported diagnosis of ADHD/ADD is admissible if participants meet all other inclusionary criteria. 6. Technology Access: Participants must have access to a Windows or Apple computer with the ability to join a Zoom session. Additionally, participants must have wired broadband internet connection at home. 7. Location: Participants must reside in the United States or Canada. 8. Orthodontic Appliances: Participants must have no orthodontic retainers or appliances that would prevent them from touching the roof of their mouth with their tongue. 9. Prescreener Recordings: Participants must accurately produce at least 3 items on the /s/ prescreener probe list. Additionally, participants must accurately produce no more than 36 items on the /s/ prescreener probe list. 10. Dynamic Assessment Probes: Participants must accurately produce at least 5 out of 45 /s/ syllables correctly and must accurately produce no more than 60% of 75 /s/ words correctly. Additionally, participants must produce at least 75% of /s/ errors as dental or lateral distortion errors. 11. Oral Mechanism Examination: Participants must demonstrate adequate range of motion of the tongue during a brief oral mechanism examination. 12. Goldman Fristoe Test of Articulation - 3rd Edition (GFTA-3): Participants must score below the 7th percentile on the GFTA-3 and must not demonstrate errors on more than two sounds other than /s/ and /z/ on the GFTA-3. 13. Test of Integrated Language and Literacy Skills (TILLS): Must receive a scaled score of at least 5 on the Listening Comprehension and Story Retelling subtests of the Test of Integrated Language and Literacy Skills (TILLS). 14. Linguisystems Articulation Test (LAT) Inconsistency Screener: Participants must produce less than three inconsistencies on the LAT Inconsistency Screener. 15. Syllable Repetition Task (SRT): Participants must produce less than four additions on the SRT. 16. Recording: Consent/assent to recording of assessment and treatment sessions. 17. General consent/assent: Consent/assent provided for study procedures. Exclusion Criteria: * 1\. Age: Participants less than 7;0 or greater than 11;11. 2. /s/ Errors: Participants who do not experience difficulty on /s/. 3. English Language Status: Participants who do not speak English as a dominant language and/or who began learning English prior to age 3 4. Hearing Status: Participants who have reported hearing loss, per parent report. 5\. Neurodevelopmental Status: Participants who have a reported neurodevelopmental diagnosis. A reported diagnosis of ADHD/ADD is admissible if participants meet all other inclusionary criteria. 6\. Technology Access: Participants who do not have access to a Windows or Apple computer with the ability to join a Zoom session. Additionally, participants who do not have wired broadband internet connection at home. 7\. Location: Participants who do not reside in the United States or Canada. 8. Orthodontic Appliances: Participants who have orthodontic retainers or appliances that would prevent them from touching the roof of their mouth with their tongue. 9\. Prescreener Recordings: Participants who accurately produce less than 3 items on the /s/ prescreener probe list. Additionally, participants who accurately produce more than 36 items on the /s/ prescreener probe list. 10\. Dynamic Assessment Probes: Participants who accurately produce less than 5 out of 45 /s/ syllables correctly and/or who accurately produce more than 60% of 75 /s/ words correctly. Additionally, participants who produce less than 75% of /s/ errors as dental or lateral distortion errors. 11\. Oral Mechanism Examination: Participants who do not demonstrate adequate range of motion of the tongue during a brief oral mechanism examination. 12\. Goldman Fristoe Test of Articulation - 3rd Edition (GFTA-3): Participants who score above the 7th percentile on the GFTA-3 and/or who demonstrate errors on more than two sounds other than /s/ and /z/ on the GFTA-3. 13\. Test of Integrated Language and Literacy Skills (TILLS): Participants who receive a scaled score below 5 on the Listening Comprehension and Story Retelling subtests. 14\. Linguisystems Articulation Test (LAT) Inconsistency Screener: Participants who produce greater than three inconsistencies on the LAT Inconsistency Screener. 15\. Syllable Repetition Task (SRT): Participants who produce greater than four additions on the SRT. 16\. Recording: No consent/assent provided to recording of assessment and treatment sessions. 17\. General consent/assent: No consent/assent provided for study procedures.