Table 4.
Parameters estimated from the three graded response models (GRM).
| a | b1 | b2 | |
|---|---|---|---|
| FII | |||
| Item 2 | 1.320 | 0.547 | 3.361 |
| Item 6 | 1.403 | −0.820 | 2.765 |
| Item 8 | 1.887 | −0.245 | 2.470 |
| Item 13 | 1.345 | −1.451 | 2.373 |
| Item 15 | 1.714 | 0.168 | 2.867 |
| Item 16 | 1.816 | 0.787 | 3.107 |
| Item 17 | 1.278 | 0.332 | 2.911 |
| Item 20 | 1.353 | 0.601 | 3.444 |
| Item 21 | 1.174 | −1.567 | 1.542 |
| Item 23 | 0.942 | 0.231 | 3.164 |
| Item 28 | 1.115 | 0.302 | 3.681 |
| EF | |||
| Item 3 | 1.698 | 1.053 | 2.889 |
| Item 4 | 1.473 | 1.076 | 3.100 |
| Item 5 | 1.300 | −0.805 | 2.792 |
| Item 9 | 1.068 | 0.831 | 3.781 |
| Item 10 | 1.238 | 0.315 | 3.612 |
| Item 12 | 1.224 | −0.075 | 2.703 |
| PM | |||
| Item 7 | 1.094 | 0.046 | 4.181 |
| Item 14 | 2.273 | 0.327 | 2.203 |
| Item 18 | 1.581 | 1.214 | 4.092 |
| Item 22 | 2.408 | 0.594 | 2.456 |
Note. a, discrimination parameter; b1, difficulty parameter response option 1; b2, difficulty parameter response option 2; AIC, Akaike Information Criterion; FII, Forgetfulness of Immediate Information; EF, Executive Functions; PM, Prospective Memory. AIC FFI: 11,292.92, AIC EF: 5938.43, AIC PM: 3742.51. Bold values are selected items for each factor.