Figure 3.

Effect of IBSR intervention on the Overall Assessment of the Speaker’s Experience of Stuttering-Adults (OASES-A) total score in comparison to control group. Data are displayed as mean score ± standard deviation. T1 = before intervention, T2 = after intervention, and T3 = one month after intervention. Impact rating score rates the severity of the stuttering experience: mild (1.00–1.49), mild–moderate )1.50–2.24), moderate (2.25–2.99), moderate–severe (3.00–3.74), and severe (3.75–5.00). * p < 0.05.