PMC4276132_01
PMC4276132_02
Lilianne's accuracy in producing untreated /r/ words elicited without feedback in a previous biofeedback treatment study. X-axis represents probe elicitation session (BL = baseline, TX = within-treatment, MN = maintenance). Y-axis represents per cent of tokens rated perceptually correct based on mode across three blinded clinician listeners.
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F1
Maintenance probes elicited without biofeedback and scored by blinded listeners confirmed a high level of accuracy for vocalic variants of /r/ in untreated words, with a mean of 96% correct across three maintenance sessions (Figure 1).