Table 9 Goodness of fit statistics for UIRT (2PL) and MIRT (2PL) models in test-one
From: Evaluating the quality of the ontology-based auto-generated questions
IRT models | -2 log likelihood | Free parameters | AIC | BIC |
|---|---|---|---|---|
UIRT (2PL) | 2085.82 | 28 | 2141.82 | 2144.63 |
2-MIRT (2PL) | 2057.31 | 41 | 2139.31 | 2143.43 |
3-MIRT (2PL) | 2044.58 | 56 | 2156.58 | 2162.2 |