Reliability, Validity, and Minimal Detectable Change of the Backward Walk Test in Older Adults With Dementia.

Background And Purpose: The backward walk test (BWT) has been used to evaluate the balance, gait, and fall risk for older adults, but its psychometric properties in older adults with dementia have not been investigated. This study aims to examine the test-retest and interrater reliability, construct and known-group validity, and absolute and relative minimal detectable changes at the 95% level of confidence (MDC95) of the BWT in older adults with dementia.

Methods: This study was a cross-sectional study with repeated measures.