Generalization With AI Navigation Using StaRt

Inclusion Criteria:

* • Must be between 9;0 and 17;11 (years;months) old at the time of enrollment.

  * Must speak English as the dominant or equally dominant language
  * Must have begun learning English by age 3, per parent report.
  * Must hear a rhotic dialect of English from at least one speaker in the home if the home language is English.
  * Must pass a pure-tone hearing screening.
  * Must pass a brief examination of oral structure and function.
  * Must demonstrate age-appropriate receptive and expressive language abilities on the Clinical Evaluation of Language Fundamentals-5 (CELF-5).
  * Must have access to a laptop or desktop computer for study sessions.
  * Must have home wifi sufficient to support video calls in the event of randomization to the telepractice condition.
  * Must have completed participation in the VISIT randomized controlled trial.
  * Must score at least 60% correct in at least one treatment session during the related previous study, VISIT.

Exclusion Criteria:

* • Must not exhibit voice or fluency disorder of a severity judged likely to interfere with the ability to participate in study activities.

  * Must not currently have orthodontia that crosses the palate and cannot be removed.
  * Must not have history of permanent hearing loss.
  * Must not have an existing diagnosis of developmental disability such as cerebral palsy or Down Syndrome.
  * Must not have history of major brain injury, surgery, or stroke in the past year.
  * Must not have epilepsy with active seizure incidents with in the past 6 months.
  * Must not show clinically significant signs of apraxia of speech or dysarthria.