Table 3.
Latent Class Analysis Fit Statistics for Walking Models, National Survey of Health and Development, United Kingdom, 1982–1989
| Sex and No. of Latent Classes |
||||||
| Males (n = 1,797) | Females (n = 1,790) | |||||
| 1 | 2 | 3 | 1 | 2 | 3 | |
| No. of parameters | 8 | 17 | 26 | 8 | 17 | 26 |
| Log likelihood | −6,129.9 | −6,082.8 | −6,065.4 | −5,994.1 | −5,940.5 | −5,931.0 |
| Information criteriaa | ||||||
| Akaike’s Information Criterion | 12,275.9 | 12,199.7 | 12,182.8 | 12,004.2 | 11,915.0 | 11,913.9 |
| Schwarz’s BIC | 12,319.8 | 12,293.1 | 12,325.6 | 12,048.1 | 12,008.3 | 12,056.6 |
| Sample-size-adjusted BIC | 12,294.4 | 12,239.1 | 12,243.0 | 12,022.7 | 11,954.3 | 11,974.0 |
| χ2 goodness-of-fit tests | ||||||
| Degrees of freedom | 72 | 63 | 54 | 72 | 63 | 54 |
| Pearson χ2 test | ||||||
| Statistic | 149.1 | 82.8 | 51.5 | 184.5 | 85.2 | 64.1 |
| P value | <0.001 | 0.05 | 0.57 | <0.001 | 0.03 | 0.16 |
| LRT χ2 | ||||||
| Statistic | 160.7 | 90.7 | 64.4 | 166.2 | 85.7 | 70.9 |
| P value | <0.001 | 0.01 | 0.16 | <0.001 | 0.03 | 0.06 |
| Smallest class percentageb | 100.0 | 47.2 | 16.8 | 100.0 | 33.5 | 25.2 |
| Entropy | 1.000 | 0.659 | 0.500 | 1.000 | 0.371 | 0.556 |
| T classes vs. T − 1 classes | ||||||
| Difference in no. of parameters | 9 | 9 | 9 | 9 | ||
| Lo-Mendell-Rubin adjusted LRT | ||||||
| Statistic | 92.8 | 34.4 | 150.8 | 62.1 | ||
| P value | 0.002 | 0.34 | 0.003 | 0.37 | ||
Abbreviations: BIC, Bayesian Information Criterion; LRT, likelihood ratio test.
a
Minimum information criterion values are shown in italic type.
b
Based on estimated posterior class membership probabilities.