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Table 3 Goodness-of-fit indices for measurement invariance analyses across visit

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

  χ2 df χ2diff (dfdiff) CFI CFIdiff TLI RMSEA
Visit 1 20.97 19 .997 .995 .023
Visit 2 30.40 19 .984 .976 .054
Visit 3 30.66 19 .988 .982 .055
Configural (equal form) 278.46 213 .981 .976 .039
Metric (equal loadings) 294.18 225 15.72(12) .980 .001 .976 .039
Equal factor variances 310.43 229 31.97(16) .977 .003 .972 .042
Scalar
(equal indicator intercepts)
327.38 237 48.92(24) .974 .006 .970 .043
Equal latent means 452.23 241 173.77(28) .940 .04 .931 .065
  1. CFI difference (CFIDIFF) above 0.01, and chi-square difference test (χ2DIFF) above a p-value cut-off of 0.01