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Table 6 Final deviances and information criteria of the uni- and the four-dimensional partial credit model

From: Developing a computer-based assessment of complex problem solving in Chemistry

Model Unidimensional model Four-dimensional model
Final deviance (dev) 17,344.36 16,749.19
Number of parameters (np) 53 62
AIC 17,450.36 16,873.19
BIC 17,481.98 16,910.18
  1. AIC, Akaike's Information Criterion; BIC, Bayesian Information Criterion.