Rawan AlHeresh1, Michael P LaValley, Wendy Coster, Julie J Keysor. 1. Department of Occupational Therapy, School of Health and Rehabilitation Sciences, Massachusetts General Hospital Institute of Health Professions (Dr AlHeresh); Department of Biostatistics, Boston University School of Medicine (Dr LaValley); Department of Occupational Therapy (Dr Coster); Department of Physical Therapy and Athletic Training (Dr Keysor), Boston University Sargent College of Health and Rehabilitation Sciences, Boston, Massachusetts.
Abstract
OBJECTIVE: To evaluate construct validity and scoring methods of the world health organization-health and work performance questionnaire (HPQ) for people with arthritis. METHODS: Construct validity was examined through hypothesis testing using the recommended guidelines of the consensus-based standards for the selection of health measurement instruments (COSMIN). RESULTS: The HPQ using the absolute scoring method showed moderate construct validity as four of the seven hypotheses were met. The HPQ using the relative scoring method had weak construct validity as only one of the seven hypotheses were met. CONCLUSION: The absolute scoring method for the HPQ is superior in construct validity to the relative scoring method in assessing work performance among people with arthritis and related rheumatic conditions; however, more research is needed to further explore other psychometric properties of the HPQ.
OBJECTIVE: To evaluate construct validity and scoring methods of the world health organization-health and work performance questionnaire (HPQ) for people with arthritis. METHODS:Construct validity was examined through hypothesis testing using the recommended guidelines of the consensus-based standards for the selection of health measurement instruments (COSMIN). RESULTS: The HPQ using the absolute scoring method showed moderate construct validity as four of the seven hypotheses were met. The HPQ using the relative scoring method had weak construct validity as only one of the seven hypotheses were met. CONCLUSION: The absolute scoring method for the HPQ is superior in construct validity to the relative scoring method in assessing work performance among people with arthritis and related rheumatic conditions; however, more research is needed to further explore other psychometric properties of the HPQ.
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