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Table 6 Goodness-of-fit indices for measurement invariance analyses across injury category

From: Disablement in the Physically Active Scale Short Form-8: psychometric evaluation

  χ2 df χ2diff (dfdiff) CFI CFIdiff TLI RMSEA
Persistent (n = 177) 10.94 19 1.00 1.00 .000
Acute/subacute (n = 161) 18.79 19 1.00 1.00 .000
Configural (equal form) 30.89 38 1.00 1.00 .000
Metric (equal loadings) 40.08 44 9.19(6) 1.00 NC 1.00 .000
Equal factor variances 40.88 46 9.99(8) 1.00 NC 1.00 .000
Scalar
(equal indicator intercepts)
43.47 50 12.58(12) 1.00 NC 1.00 .000
Equal latent means 55.22 52 24.33(14) .997 .003 .997 .014