Inter-rater reliability of the Berg Balance Scale, 30 s chair stand test and 6 m walking test, and construct validity of the Berg Balance Scale in nursing home residents with mild-to-moderate dementia.

The results reveal an excellent relative inter-rater reliability of the BBS, CST and 6 m walking test as well as high internal consistency for the BBS in a population of nursing home residents with mild-to-moderate dementia. The absolute reliability was 2.7 on the BBS and 0.08 on the 6 m walking test.