Table 3.
Model fit comparison for covariate variables with CBCL change score outcomes.
| Model | AIC | BIC | Adjust BIC | Chi-square | RMSEA | CFI | SRMR |
|---|---|---|---|---|---|---|---|
| Left Amygdala Subnuclei | |||||||
| Model 1 | 1370.58 | 1446.25 | 1320.73 | .17 | .22 | .98 | .06 |
| Model 2 | 1420.93 | 1515.52 | 1358.62 | .02 | .04 | .94 | .05 |
| Right Amygdala Subnuclei | |||||||
| Model 1 | 1351.14 | 1426.81 | 1301.29 | .06 | .08 | .96 | .08 |
| Model 2 | 1403.38 | 1497.97 | 1341.07 | .01 | .02 | .93 | .07 |
| Left Hippocampus Subfields | |||||||
| Model 1 | 1033.15 | 1148.55 | 957.13 | .21 | .26 | .99 | .05 |
| Model 2 | 1087.37 | 1225.48 | 996.40 | .01 | .02 | .96 | .05 |
| Right Hippocampus Subfields | |||||||
| Model 1 | 1001.18 | 1116.59 | 925.16 | .13 | .17 | .99 | .07 |
| Model 2 | 1055.19 | 1193.29 | 964.22 | .02 | .04 | .97 | .08 |
Note. Model 1 = mediation model (MM) with age at time of MRI scan and total intracranial volume (TIV) – TIV was only a covariate for the respective brain volume (i.e., left amygdala, right amygdala, left hippocampus, right hippocampus); Model 2 = MM model with sex, age, TIV as covariates. AIC = Akaike's Information Criterion, BIC = Bayesian Information Criterion, RMSEA = root mean square error of approximation, SRMR = standardized root mean square residual, CFI = comparative fit index.