Table 1.

ICCs for Test–Retest and Interrater Reliability Values for Community-Dwelling Older Adults with Mild to Moderate Alzheimer Disease (n=15)

Balance test	ICC	95% CI	p-value*
Test–retest reliability
BBS	0.95	0.85–0.98	<0.0001
TUG	0.72	0.33–0.90	0.002
FRT	0.81	0.52–0.94	<0.0001
Interrater reliability
BBS	0.72	0.31–0.91	0.002
TUG	0.98	0.93–0.99	<0.0001
FRT	0.79	0.43–0.94	0.001

^*Statistical significance was set at p<0.05.

ICC=intra-class correlation coefficient; BBS=Berg Balance Scale; TUG=timed up-and-go test; FRT=Functional Reach Test.