The psychometric properties of the Evaluation of Daily Activity Questionnaire in seven musculoskeletal conditions HammondAlison PriorYeliz 2020 <p>ABSTRACT</p><p>Purpose: The purpose of this study is to psychometrically test the Evaluation of Daily Activity</p><p>Questionnaire in seven musculoskeletal conditions.</p><p>Materials and methods: One thousand and two hundred people with ankylosing spondylitis; osteoarthritis;</p><p>systemic lupus erythematosus; systemic sclerosis; chronic pain; chronic upper limb disorders; or</p><p>Primary Sj€ogren’s syndrome completed the Evaluation of Daily Activity Questionnaire, Health Assessment</p><p>Questionnaire and Short-Form Health Survey v2. We examined internal construct validity using Rasch analysis,</p><p>internal consistency, concurrent validity with the Health Assessment Questionnaire and Short-Form</p><p>Health Survey v2. Participants repeated the Evaluation of Daily Activity Questionnaire to assess test–retest</p><p>reliability.</p><p>Results: The 12 domains satisfied Rasch model expectations for fit, local dependency, unidimensionality</p><p>and invariance by age and gender, in each musculoskeletal condition. Internal consistency was consistent</p><p>with individual use (Cronbach’s a>0.90); concurrent validity was strong (Health Assessment</p><p>Questionnaire: rs.0.60–0.92; Short-Form Health Survey v2 Physical Function: rs.0.61 to 0.91) and test–</p><p>retest reliability excellent (Intra-Class Correlation Coefficient(2,1).0.77–0.96).</p><p>Conclusion: The Evaluation of Daily Activity Questionnaire satisfied Rasch model requirements for construct</p><p>validity and has good reliability and validity in each MSC. The Evaluation of Daily Activity</p><p>Questionnaire can be used as a measure of everyday activity in practice and research with people with</p><p>musculoskeletal conditions.</p>