Table 3.

Test-retest reliability.

Sway Stances	ICC	95% CI	F Test with True Value 0
		[lower, upper]	Value	df1	df2	p
ICC for Weeks 1-3
Balance – Overall	0.88	0.81, 0.92	8.13	54	108	<0.001
Feet Together	0.72	0.56, 0.83	3.58	54	108	<0.001
Tandem Stance Right Foot Forward	0.80	0.68, 0.88	4.89	54	108	<0.001
Tandem Stance Left Foot Forward	0.69	0.51, 0.81	3.23	54	108	<0.001
Single Leg Right	0.81	0.71, 0.88	5.34	54	108	<0.001
Single Leg Left	0.83	0.74, 0.90	5.90	54	108	<0.001
ICC for Weeks 1-2
Balance – Overall	0.82	0.69, 0.90	5.55	54	54	<0.001
Feet Together	0.76	0.59, 0.86	4.15	54	54	<0.001
Tandem Stance Right Foot Forward	0.77	0.61, 0.87	4.31	54	54	<0.001
Tandem Stance Left Foot Forward	0.62	0.35, 0.78	2.67	54	54	<0.001
Single Leg Right	0.69	0.47, 0.82	3.26	54	54	<0.001
Single Leg Left	0.74	0.55, 0.85	3.82	54	54	<0.001

Results of test-retest ICC Calculation for weeks 1-3 using mean-rating, absolute-agreement, 2-way mixed effects model and for weeks 1-2 using mean-rating, absolute-agreement, 2-way mixed effects model. CI, confidence interval; df, degrees of freedom; ICC, intraclass correlation coefficient.