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Comparison of 1PL–4PL models for Spanish comprehension.
| Model | AIC | BIC | logLik | df |
|---|---|---|---|---|
| Rasch | 238,610.98 | 240,598.10 | −118,876.49 | NA |
| 2PL | 236,007.27 | 239,972.27 | −117,147.64 | 427.00 |
| 3PL | 236,590.80 | 242,538.29 | −117,011.40 | 428.00 |
| 4PL | 254,849.39 | 262,779.38 | −125,712.70 | 428.00 |
