Objective: To investigate the factor structure of the 12 item World Health Organization
Disability Assessment Schedule (WHODAS) 2.0. Design: Cross-sectional cohort survey
study. Setting: Physical and Rehabilitation Medicine outpatient university clinic. Subjects:
The 408 consecutive patients with chronic musculoskeletal pain. Main measures:
Exploratory and confirmatory factor analysis. Results: A two-factor model most accurately fit
the observed data of musculoskeletal pain patients (root mean square error of …

Objective: The Clubhouse model (CM) for serious mental illness is a recovery-oriented and
member-driven program that aims to facilitate functional recovery. Efficacy evaluation of the
CM is limited by lack of uniform functional disability assessment. The World Health
Organization Disability Assessment Schedule 2.0 (WHODAS-2.0) is a widely accepted
measure of functional disability, but its psychometric properties have yet to be examined
within the CM. Method: This research sought to confirm the generic six-factor structure of the …