Table 4.
Fit Indices for Unconditional Growth Mixture Models Identifying Latent Anxiety Symptom Trajectories in Adolescent Girls and Boys
| Latent Classes |
Parameters | LL | BIC | cAIC | LMR-LRT (p value) |
Entropy |
|---|---|---|---|---|---|---|
| Generalized Anxiety Disorder Symptoms | ||||||
| 1 | 5 | −5361.27 | 10756.13 | 10761.13 | -- | 1.00 |
| 2 | 8 | −5206.97 | 10467.67 | 10475.67 | < .001 | 0.79 |
| 3 | 11 | −5150.41 | 10374.71 | 10385.71 | < .001 | 0.74 |
| 4 | 14 | −5134.75 | 10363.55 | 10377.55 | .02 | 0.73 |
| 5 | 17 | −5127.05 | 10368.30 | 10385.30 | .34 | 0.74 |
| 6 | 20 | −5117.04 | 10368.44 | 10388.44 | .17 | 0.74 |
| Social Anxiety Disorder Symptoms | ||||||
| 1 | 5 | −4987.45 | 10008.48 | 10013.48 | -- | 1.00 |
| 2 | 8 | −4855.88 | 9765.50 | 9773.50 | < .001 | 0.70 |
| 3 | 11 | −4795.90 | 9665.69 | 9676.69 | < .001 | 0.76 |
| 4 | 14 | −4775.22 | 9644.49 | 9658.49 | .002 | 0.79 |
| 5 | 17 | −4758.65 | 9631.49 | 9648.49 | .01 | 0.76 |
| 6 | 20 | −4749.47 | 9633.29 | 9653.29 | .19 | 0.77 |
Note: BIC = Bayesian Information Criterion; cAIC = Consistent Akaike Information Criterion; LL = Log-likelihood; LMR-LRT = Lo-Mendell-Rubin Likelihood Ratio Test; Lower BIC and cAIC values indicated better model fit. LMR-LRT p values ≤ .05 indicated that the k-class solution was a superior fit compared to a k-1 class solution. Entropy provided a measure of classification accuracy, with higher values indicating better accuracy.
The bolded numbers represent the lowest values of each information-based fit index.