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Kaplan, David; Depaoli, Sarah – Structural Equation Modeling: A Multidisciplinary Journal, 2011
This article examines the problem of specification error in 2 models for categorical latent variables; the latent class model and the latent Markov model. Specification error in the latent class model focuses on the impact of incorrectly specifying the number of latent classes of the categorical latent variable on measures of model adequacy as…
Descriptors: Markov Processes, Longitudinal Studies, Probability, Item Response Theory