Measurement properties of the WOMAC LK 3.1 pain scale P.W. Stratford, P.T., M.Sc., D.M. Kennedy, P.T., M.Sc., L.J. Woodhouse, P.T., Ph.D., G.F. Spadoni, P.T., M.Sc. Osteoarthritis and Cartilage Volume 15, Issue 3, Pages 266-272 (March 2007) DOI: 10.1016/j.joca.2006.09.005 Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions
Fig. 1 (a) Distribution of WOMAC pain scores for entire sample (n=474). (b) Distribution of WOMAC pain difference scores for test–retest reliability sample (n=36). Osteoarthritis and Cartilage 2007 15, 266-272DOI: (10.1016/j.joca.2006.09.005) Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions
Fig. 2 Initial confirmatory factor analysis model with factor loadings. Osteoarthritis and Cartilage 2007 15, 266-272DOI: (10.1016/j.joca.2006.09.005) Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions
Fig. 3 (a) Modified confirmatory factor analysis model with correlated error terms and factor loadings. (b) Modified confirmatory factor analysis model with two factors and factor loadings. Osteoarthritis and Cartilage 2007 15, 266-272DOI: (10.1016/j.joca.2006.09.005) Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions