Chunk #30 — Three methods to decide between latent dimensionality and latent categories — Model-based clustering

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Does nature have joints worth carving? A discussion of taxometrics, model-based clustering and latent variable mixture modeling.

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whether the clusters are meaningful; for instance, whether subjects in the tail of the skewed distribution in Fig. 4 should be considered as a meaningful distinct group. When selecting a model with multiple clusters as the best-fitting model, it is therefore necessary to check whether the cluster structure is consistent with previous findings, or validate the classes for instance in a replication sample.