Table 1 Simulation conditions. The conditions of the full cross classified design for the simulation study. The numbers of items, number of participants, as well as the skewness from a normal distribution of the latent variable were varied
Modela | Itemsb | Nc | Skewness |
|---|---|---|---|
IRT | 3 | 100 | 0 |
CTT | 5 | 500 | +/− 0.4 |
|  | 7 | 1000 | +/− 0.8 |
|  | 10 |  | +/− 1.3 |
|  | 15 |  | +/− 1.9 |
|  | 20 |  | +/− 2.6 |
|  | 50 |  | +/− 3.6 |