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Performs UPCM, a method to model uncertainty in (Generalized) Partial Credit Models
Tutz, Gerhard and Schauberger, Gunther (2020): Uncertainty in Latent Trait Models, Applied Psychological Measurement, https://journals.sagepub.com/doi/abs/10.1177/0146621620920932?journalCode=apma
UPCM
# NOT RUN { data(tenseness) Y <- data.matrix(tenseness[,1:4]) X <- model.matrix(~ Gender + Age, data = tenseness)[,-1] m_upcm <- UPCM(Y = Y, X = X, cores = 2, GPCM = FALSE) m_upcm plot(m_upcm) # }
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