Table S2. Calculating intraclass correlation coefficient (ICC) using one-way ANOVA applied to Table S1 data.

Source of variation	SS	Df	MS	F	P value
Subjects	12.3672813	19	0.650909542	33.09184797	3.90126E−11
Error	0.393395705	20	0.019669785
Total	12.76067701	39

ICC = (2x12.4−12.8)/[(2−1)x12.8]=0.93834; Pearson correlation coefficient =0.9387; SEM = √(MSerror) =0.14025. SEM, standard error of measurement.