The model fit parameters of the 1PL and 2PL models in item response analysis
| Model type | AIC | BIC | −2 log likelihood |
|---|---|---|---|
| 1 PL | 27 578.96 | 27 972.63 | −13 700.48 |
| 2 PL | 27 327.17 | 27 813.72 | −13 553.58 |
AIC, Akaike information criterion; BIC, Bayesian information criterion; PL, parameter logistic.