World Health Organization Disability Assessment Schedule-12 (WHODAS-12)

Description: Used for ages 18+ years. The WHODAS-12 is a 12-item measure that assesses disability and overall functioning.

Scoring: Higher score/percentage = higher disability/loss of function
Each item is rated from 0 to 4.

Score ranges:
0 - 20%: none
20 - 40%: mild
40 - 60%: moderate
60 - 80%: severe
80%+: extreme