Table 5 Goodness-of-fit indices for measurement invariance analyses across activity level
From: Disablement in the Physically Active Scale Short Form-8: psychometric evaluation
χ2 | df | χ2diff (dfdiff) | CFI | CFIdiff | TLI | RMSEA | |
|---|---|---|---|---|---|---|---|
Low (n = 102) | 21.04 | 19 | – | .995 | – | .992 | .033 |
Medium (n = 169) | 19.01 | 19 | – | 1.00 | – | 1.00 | .002 |
High (n = 121) | 20.51 | 19 | – | .996 | – | .993 | .026 |
Configural (equal form) | 60.58 | 57 | – | .997 | – | .996 | .013 |
Metric (equal loadings) | 76.75 | 69 | 16.17(12) | .994 | .003 | .992 | .017 |
Equal factor variances | 87.24 | 73 | 26.66(16) | .988 | .009 | .986 | .022 |
Scalar (equal ndicatorrcepts) | 85.93 | 81 | 25.35(24) | .996 | .001 | .996 | .013 |
Equal latent means | 95.91 | 85 | 35.33(28) | .991 | .006 | .991 | .018 |