Table 3.
Model fit indices for longitudinal confirmatory factor analysis models
| Model | χ 2 | df | p | Δχ 2 | Δdf | p | RMSEA | CFI | TLI | SRMR |
|---|---|---|---|---|---|---|---|---|---|---|
| AP1 (mostly mothers) | ||||||||||
| Base model (free AX, DP loadings) | / | / | / | / | / | / | / | / | / | / |
| Equal AX loadings, equal DP loadings | 69.91 | 51 | .04 | / | / | / | .03 | .99 | .99 | .04 |
| All AX, DP loadings equal 1 | 75.04 | 52 | .02 | 6.27 | 1 | .01 | .03 | .99 | .98 | .04 |
| All AX, DP loadings equal 1 & Equal residual variances for AX t , DP t | 75.83 | 60 | .08 | 4.71 | 8 | .79 | .02 | 1.00 | .99 | .04 |
| AP2 (mostly fathers) | ||||||||||
| Base model (free AX, DP loadings) | 72.79 | 44 | .004 | / | / | / | .04 | .99 | .97 | .02 |
| Equal AX loadings, equal DP loadings | 82.35 | 51 | .004 | 10.07 | 7 | .18 | .03 | .99 | .97 | .04 |
| All AX, DP loadings equal 1 | 82.40 | 52 | .005 | .66 | 1 | .42 | .03 | .99 | .98 | .04 |
| All AX, DP loadings equal 1 & Equal residual variances for AX t , DP t | 79.40 | 60 | .05 | 2.70 | 8 | .95 | .02 | .99 | .99 | .04 |
Note. AP = adoptive parent, AX = anxiety symptoms, DP = depressive symptoms. RMSEA = root mean square error of approximation, CFI = comparative fit index, TLI = Tucker-Lewis index, SRMR = standardized root mean residual. The final models selected are in bold. χ 2 represents robust model test statistics, Δχ2 is a function of standard model test statistics in Satorra-Bentler scaled chi-square difference tests.