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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