Table 6:
Invariance Tests by Age Group
| Child Report | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Invariance Level | χ2 | df | Δ χ2 | CFI | RMSEA | Lower CI | Upper CI | Change in CFI | Change in RMSEA |
| Configural | 3286.088 | 1538 | -- | 0.967 | 0.046 | 0.044 | 0.048 | -- | -- |
| Metric | 2962.415 | 1579 | 54.17 | 0.974 | 0.040 | 0.038 | 0.042 | 0.007 | −0.006 |
| Threshold | 3073.168 | 1661 | 159.77*** | 0.974 | 0.040 | 0.037 | 0.042 | 0 | 0 |
| Residual | 3272.629 | 1610 | 97.50*** | 0.969 | 0.044 | 0.041 | 0.046 | −0.005 | 0.004 |
| Parent Report | |||||||||
| Invariance Level | χ2 | df | Δ χ2 | CFI | RMSEA | Lower CI | Upper CI | Change in CFI | Change in RMSEA |
| Configural | 2780.89 | 1538 | -- | 0.954 | 0.039 | 0.036 | 0.041 | -- | -- |
| Metric | 2728.21 | 1579 | 103.82*** | 0.958 | 0.037 | 0.034 | 0.039 | 0.004 | −0.002 |
| Threshold | 3159.85 | 1661 | 168.31*** | 0.945 | 0.041 | 0.039 | 0.043 | −0.013 | 0.004 |
| Residual | 3159.85 | 1660 | 91.42*** | 0.946 | 0.041 | 0.039 | 0.043 | .001 | 0 |
Invariance tests using a mean- and variance-adjusted weight least squares (WLSMV) estimator comparing older and younger children on child-report (top panel) and parent-report (bottom panel) are presented here. Good model fit (noted in bold) was established by a comparative fit index (CFI) > .95 and root mean square error of approximation (RMSEA) < .06. Measurement invariance at each level (noted in bold) was established by a decrement in CFI < .01 and an increase in RMSEA < .015.
***
p < .001.