Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| Análise de Classes Latentes (LCA)× | Análise de Perfil Latente (LPA)× | |
|---|---|---|
| Área≠ | Estatística | Psicometria |
| Família | Latent structure | Latent structure |
| Ano de origem≠ | 1950s–1968 | 2010 |
| Autor original≠ | Paul F. Lazarsfeld | Lazarsfeld & Henry; Collins & Lanza |
| Tipo≠ | Latent variable / person-centered classification | Person-centered finite mixture model |
| Fonte seminal≠ | Goodman, L. A. (1974). Exploratory latent structure analysis using both identifiable and unidentifiable models. Biometrika, 61(2), 215–231. DOI ↗ | Collins, L. M., & Lanza, S. T. (2010). Latent Class and Latent Transition Analysis. Wiley. ISBN: 978-0-470-22839-7 |
| Outros nomes | LCA, latent class model, latent categorical analysis, finite mixture of multinomials | Continuous Latent Class Analysis, Gaussian Profile Mixture Model, Person-Centered Cluster Analysis, Gizil Profil Analizi |
| Relacionados≠ | 6 | 2 |
| Resumo≠ | Latent class analysis identifies unobserved subgroups — latent classes — within a population by finding patterns of responses across a set of categorical observed indicators. It is the categorical-variable counterpart of cluster analysis, but grounded in an explicit probabilistic model, and is widely used in social, health, and behavioral sciences to discover typologies in survey or diagnostic data. | Latent Profile Analysis (LPA) is a person-centered finite mixture modeling technique that identifies unobserved subgroups — called profiles — within a population based on patterns of scores across multiple continuous indicators. Rooted in Lazarsfeld and Henry's latent structure tradition and formally synthesized for applied behavioral research by Collins and Lanza (2010), LPA assumes that observed heterogeneity in continuous data arises from a discrete number of latent classes, each characterized by a unique multivariate mean profile. |
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