Table 2 Model fit statistics for tests of invariance with social anxiety, depressive symptoms, co-rumination, and friendship quality across the three time points

Null model^a

11463.105

888

<.001

–

–

.157

–

.090

–

.118

–

No

Measurement model estimates

 Configural invariance

1111.037

711

<.001

–

–

–

.034

0.030/0.038

.966

–

.958

–

Yes

 Weak invariance

1132.180

731

<.001

21.143

20

–

.034

0.030/0.037

.965

.000

.959

.001

Yes

 Strong invariance

1493.899

753

<.001

361.719

22

–

.045

0.042/0.048

.936

.029

.927

.032

No

Latent model estimates

 Omnibus test^b

1212.815

750

<.001

281.084

3

–

.036

0.032/0.039

.960

.024

.954

.027

Yes