Table 2.
Results for Preliminary LPA Models
| Model 1: Class-specific means with class-invariant variances, covariances between correlated indicators | Model 4: Class-specific means, variances and covariances between correlated indicators | ||||||
| # of classes | 2 classes | 3 classes | 4 classes | # of classes | 2 classes | 3 classes | 4 classes |
| Parameters | 19 | 26 | 33 | Parameters | 26 | 40 | 54 |
| BIC | 5083.113 | 5097.917 | 5122.462 | BIC | 5099.981 | 5142.282 | 5180.444 |
| Class | C1: 89.79% | C1: 82.13% | C1: 73.62% | Class | C1: 66.81% | C1: 67.23% | C1: 57.45% |
| Proportions | C2: 10.21% | C2: 9.36% | C2: 9.36% | Proportions | C2: 33.19% | C2: 28.51% | C2: 22.55% |
| C3: 8.51% | C3: 9.36% | C3: 4.26% | C3: 15.75% | ||||
| C4: 7.66% | C4: 4.26% | ||||||
| Model 2: Class-specific means and covariances between correlated indicators and class-invariant variances | Model 5: Class-specific means with class-invariant variances, covariances between all indicators | ||||||
| # of classes | 2 classes | 3 classes | 4 classes | # of classes | 2 classes | 3 classes | 4 classes |
| Parameters | 21 | 30 | 39 | Parameters | 27 | 34 | 41 |
| BIC | 5081.717 | 5094.202 | 5118.927 | BIC | 5110.856 | 5126.486 | 5149.624 |
| Class | C1: 70.21% | C1: 68.51% | C1: 61.62% | Class | C1: 64.26% | C1: 81.70% | C1: 57.02% |
| Proportions | C2: 29.79% | C2: 24.68% | C2: 28.07% | Proportions | C2: 35.75% | C2: 9.36% | C2: 25.11% |
| C3: 6.81% | C3: 6.48% | C3: 8.94% | C3: 10.64% | ||||
| C4: 3.83% | C4: 7.23% | ||||||
| Model 3: Class-specific means and variances, class-invariant covariances between correlated indicators | Model 6: Class-specific means, variances, class-invariant covariances between all indicators | ||||||
| # of classes | 2 classes | 3 classes | 4 classes | 1 class | 2 classes | 3 classes | 4 classes |
| Parameters | 24 | 36 | 48 | 20 | 32 | 44 | 56 |
| BIC | 5093.073 | 5117.181 | 5163.308 | BIC | 5124.351 | 5144.160 | Model did not converge to an interpretable solution |
| Class | C1: 69.97% | C1: 65.16% | C1: 49.97% | Class | C1: 74.89% | C1: 70.21% | |
| Proportions | C2: 30.04% | C2: 28.83% | C2: 28.42% | Proportions | C2: 25.11% | C2: 26.38% | |
| C3: 6.02% | C3: 11.22% | C3: 3.40% | |||||
| C4: 10.38% | |||||||
Note 1: Each model additionally estimated k-1 parameters for class proportion and k-1 parameters for covariate effects
Note 2: Model selected as the final model is indicated in bold