Measuring behaviours for escaping from house fires: use of latent variable models to summarise multiple behaviours

Table 6 Assessment of fit of categorical latent variable models—latent class analysis

	−2LL	AIC	SSA-BIC	Entropy
1 Class	−3139.53	6307.05	6332.76	1
2 Classes	−2950.85	5959.70	6012.96	0.84
3 Classes	−2875.93	5839.86	5920.68	0.77
4 Classes	−2820.53	5759.07	5867.43	0.84

−2LL minus twice the loglikelihood, smaller values indicate better fit
AIC akaike information criterion, smaller values indicate better fit
SSA BIC sample size adjusted bayesian information criterion, smaller values indicate better fit
Entropy values close to 1 indicate more reliable classification (lower classification error)

ISSN: 1756-0500