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Table 10 Chi-square tests comparing the fit of UIRT (2PL) and MIRT (2PL) models

From: Evaluating the quality of the ontology-based auto-generated questions

Comparison x 2 Degree of freedom (DF) P-value
UIRT (2PL) 2-MIRT (2PL) 29.5 13 P-value <0.01
2-MIRT (2PL) 3-MIRT (2PL) 11.47 15 P-value >0.05