Intensive Speech Motor Chaining Treatment for Residual Speech Sound Disorders

Inclusion Criteria: * Must speak American English as a dominant language. * Must have began learning English by at least the age of 3 years. * Must be between 9;0 to 17;11 years of age. * Must have reported difficulty with /ɹ/ and/or /s/ production * Must pass pure tone hearing screening at 25 dB at 1000, 2000, and 4000 Hz. * 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) * Must receive a percentile score of 5 or below on the Goldman-Fristoe Test of Articulation-3 (GFTA-3) Sounds in Words subtest. * Must have 1 scorable response with 5+ consecutive correct /pataka/ with \> 3.4 syllables per second in the MRR-Tri task of the Maximum Performance Tasks OR must demonstrate no childhood apraxia of speech (CAS-only) features in BOTH articulatory and rate/prosody domains of the ProCAD. * Must score \<40% accurate on /ɹ/ and/or /s/ probes assessing these sounds at the word level. * Must express a desire to modify their speech. Exclusion Criteria: * Must have no known history of autism spectrum disorder, Down Syndrome, cerebral palsy, intellectual disability, permanent hearing loss, or brain injury. * Must not have current cleft palate or voice disorder.