The purpose of this study is to evaluate the reliability and validity of 10 ADLs.

This paper described the content sampling and measurement dimension of the 10 ADLs, and reported the interrater & interobserver reliability estimates for indivisual tasks and summary indexes of the 10 ADLs.

Reliability and validity are evaluated with the Pearson's correlation coefficients.

The results obtained are as follows:

1) Test-retest reliability values range from 0.88 to 0.99.

2) Interobserver reliability values range4 from 0.80 to 0.90.

3) Validity value is 0.82.