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Models Comparison
| IRT Model | AIC | BIC |
|---|---|---|
| Rasch | 2929.78 | 3033.17 |
| 1PL | 2782.99 | 2889.62 |
| GPCM | 2662.32 | 2791.56 |
Note: Bold indicates the lowest AIC and BIC values.
Abbreviations: IRT, item response theory; AIC, Akaike Information criterion; BIC, Bayesian Information criterion; 1PL, one parameter logistic; GPCM, generalized partial credit model.
