Table 3 Comparison of the three models
From: Validation of response processes in medical assessment using an explanatory item response model
Model | AIC | BIC | Log-likelihood | Deviance | Random effect (intercept) | |
|---|---|---|---|---|---|---|
Variance | SD | |||||
1 (Rasch) | 4580.9 | 4711.2 | -2269.5 | 4538.9 | 0.3379 | 0.5813 |
2 (expected cognitive load) | 4931.0 | 4949.6 | -2462.5 | 4925.0 | 0.2429 | 0.4928 |
3 (expected cognitive load + long stem) | 4815.0 | 4839.8 | -2403.5 | 4807.0 | 0.2689 | 0.5186 |