A presentation entitled "The Validity of Quality Of Life Attributions to Specific Diseases: A Multitrait-Multimethod Comparison" was delivered by Dr. Rick Guyer of JWRG at the 16th Annual ISPOR European Congress in Dublin Ireland on November 4th, 2013. This study tested the convergent and discriminant validity of disease-specific quality of life (QOL) impact attributions using the Campbell and Fiske (1959) multitrait-multimethod (MTMM) approach. The study expands beyond previous empirical tests of the new Quality of Life Disease Impact Scale (QDIS®) by focusing on adults with three comorbid conditions. Results strongly support the convergent and discriminant validity of QDIS survey measures of disease-specific QOL impact attributed specifically to hip/knee, cardiovascular, and pulmonary conditions.
John Ware Research Group (JWRG) is a privately held company founded in 2009 by John E. Ware, Jr., PhD to continue innovative research to improve patient-reported outcome (PRO) tools for use in population health surveys, clinical research and clinical practice worldwide.
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