TABLE IV.

Mean Inter-rater Spearman’s Rho Correlation Coefficients and Standard Deviations for Each of the Six Regions Rated in the Vocal Tremor Scoring System, at the Three Rating Time Points.

Inter-rater Reliability
VTSS Region/Parameter Rated	Pretraining SRCC	Post-training SRCC	Long-term Post-training SRCC
Palate	0.582 (0.32)	0.553 (0.22)	0.477 (0.34)
Base of tongue	0.522 (0.29)	0.465 (0.29)	0.668 (0.14)
Pharyngeal walls	0.578 (0.25)	0.671 (0.09)	0.685 (0.12)
Larynx (global)	0.802 (0.07)	0.691 (0.13)	0.659 (0.15)
Supraglottis	0.643 (0.11)	0.630 (0.16)	0.793 (0.11)
True vocal folds	0.614 (0.14)	0.480 (0.18)	0.550 (0.22)
Total score	0.837 (0.08)	0.759 (0.06)	0.888 (0.07)

SRCC = Spearman’s rho correlation coefficients; VTSS = Vocal Tremor Scoring System.