Table 2. Fit Indices for Latent Class Growth Analysis Examining Posttraumatic Stress Symptoms From Baseline to 12-Month Follow-Up.
| Number of Classes | AIC | BIC | SSBIC | Entropy | VLMR-LRT (p) |
BLRT (p) |
|---|---|---|---|---|---|---|
| 1 class | 27,850 | 27,874 | 27,858 | – | – | – |
| 2 class | 26,978 | 27,026 | 26,994 | 0.71 | < .001 | < .001 |
| 3 class | 26,771 | 26,844 | 26,796 | 0.63 | < .001 | < .001 |
| 4 class | 26,728 | 26,825 | 26,762 | 0.67 | < .001 | < .001 |
| 5 class | 26,708 | 26,830 | 26,750 | 0.69 | .064 | < .001 |
| 6 class | 26,700 | 26,846 | 26,751 | 0.61 | .659 | .667 |
Note. N = 960. AIC = Aikaike information criterion; BIC = Bayesian information criterion; SSBIC = sample-size adjusted Bayesian information criterion; VLMR-LRT = Lo–Mendell–Rubin likelihood ratio test; BLRT = bootstrap likelihood ratio test.