Table 2.

Proportion of /ɹ/ tokens rated correct or ${\widehat{p}}_{\mathrm{correct}}$ at baseline, midpoint (after Phase I), and maintenance (after Phase II), along with associated standardized effect sizes.

Participant	Baseline M (SD)		Midpoint M (SD)		Maintenance M (SD)		ESPhaseI	ESPhaseII	ESall	Treatment order	UVF advantage	Order effect
132	1.37	(0.90)	77.54	(5.84)	78.99	(2.83)	21.75	0.41	22.16	UVF_Trad	21.34	−21.34
139	21.12	(4.35)	59.22	(5.77)	62.67	(2.27)	9.41	0.85	10.26	UVF_Trad	8.56	−8.56
129	8.58	(3.14)	8.07	(0.60)	8.34	(2.28)	−0.22	0.12	−0.10	UVF_Trad	−0.34	0.34
135	4.09	(0.83)	36.02	(3.25)	52.48	(1.56)	17.03	8.78	25.81	UVF_Trad	8.25	−8.25
140	5.61	(1.31)	7.94	(4.74)	13.84	(4.21)	0.75	1.90	2.65	UVF_Trad	−1.15	1.15
142	12.39	(1.43)	48.53	(1.04)	49.12	(5.70)	12.49	0.21	12.70	UVF_Trad	12.28	−12.28
130	5.94	(1.34)	14.48	(11.67)	66.01	(4.22)	1.58	9.54	11.12	Trad_UVF	7.96	7.96
134	44.57	(3.19)	76.49	(4.28)	68.91	(2.51)	10.12	−2.40	7.72	Trad_UVF	−12.52	−12.52
131	33.59	(5.48)	69.96	(1.53)	77.86	(2.36)	10.00	2.17	12.17	Trad_UVF	−7.83	−7.83
136	9.64	(2.73)	47.60	(2.70)	58.73	(7.43)	8.85	2.60	11.44	Trad_UVF	−6.25	−6.25
141	6.55	(1.43)	7.09	(1.17)	6.74	(2.45)	0.34	−0.22	0.12	Trad_UVF	−0.56	−0.56
143	8.59	(3.00)	7.31	(3.46)	35.14	(4.25)	−0.39	8.52	8.13	Trad_UVF	8.91	8.91

Note. Participants are ordered based on the number of pretreatment baseline sessions (see Figures 1 and 2). SD = standard deviation; ES = effect size; UVF = ultrasound visual feedback; Trad = traditional treatment.