Table 2 CRF latent models and fit statistics

Model 1

Nine indicators, one latent factor, no correlated errors

59.92

27

<0.001

0.77

0.69

1,246.74

0.15

Model 2

Nine indicators, one latent factor, two pairs of correlated errors

43

25

0.01

0.87

0.82

1,237.69

0.12

Model 3 (final model)

Seven indicators, one latent factor, two pairs of correlated errors

16.53

12

0.17

0.96

0.94

938.24

0.09

Model 4

Seven indicators loading on two latent factors, one pair of correlated error specified

26.73

12

0.01

0.88

0.8

948.44

0.16