手法を比較

	ロバスト潜在プロファイル分析	潜在クラス分析 (LCA)
分野	統計学	統計学
系統	Latent structure	Latent structure
提唱年	2010s	1950s–1968
提唱者	Building on Vermunt & Magidson (2002); robust extensions developed through contaminated normal mixture literature (Punzo & McNicholas, 2010s)	Paul F. Lazarsfeld
種類	Person-centered mixture model with robust estimation	Latent variable / person-centered classification
原典	Vermunt, J. K. & Magidson, J. (2002). Latent class cluster analysis. In J. A. Hagenaars & A. L. McCutcheon (Eds.), Applied Latent Class Analysis (pp. 89–106). Cambridge University Press. ISBN: 978-0521594035	Goodman, L. A. (1974). Exploratory latent structure analysis using both identifiable and unidentifiable models. Biometrika, 61(2), 215–231.
別名	RLPA, robust LPA, robust mixture model for continuous indicators, outlier-robust latent profile analysis	LCA, latent class model, latent categorical analysis, finite mixture of multinomials
関連	5	6
概要	Robust latent profile analysis identifies latent subgroups of individuals based on their continuous multivariate indicators while protecting parameter estimates from distortion by outliers or atypical observations. It extends standard latent profile analysis by replacing the Gaussian component densities with heavier-tailed or contaminated-normal alternatives that down-weight extreme cases during estimation.	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.