Online Rotating Delivery of Perception/Production Enhanced Treatment for Rhotics

The goal of this clinical trial is to determine whether perceptual training enhances speech perception and production outcomes in children with Residual Speech Sound Disorders (RSSD). The main questions it aims to answer are: Does pre-treatment speech production accuracy predict treatment response? Does perceptual acuity influence the effectiveness of perception-first versus production-first interventions? Researchers will compare TAU+Perception-first and TAU-first treatment conditions to see if the order of intervention affects speech improvement outcomes, particularly based on participants' initial perception and production accuracy. Participants will: Complete pre-treatment evaluations to assess /r/ production and speech perception. Be grouped into high or low production and perception accuracy categories based on established thresholds. Be randomly assigned (using a blocked randomization procedure) to one of two treatment arms via telepractice. Participate in the assigned treatment condition designed to target speech sound accuracy. Randomization is stratified to ensure treatment groups are balanced based on pre-treatment severity in both the perception and production domains.