Table 2.
Item difficulty (b), discrimination (a), and their standard errors (s.e.) for the Pick-the-Picture (Working Memory) task.
| Item | Pictures | a | (se) | b1 | (se) | b2 | (se) | b3 | (se) | b4 | (se) | b5 | (se) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 1.08 | (0.12) | −1.32 | (0.14) | ||||||||
| 2 | 2 | 1.38 | (0.14) | −1.29 | (0.11) | ||||||||
| 3 | 3 | 1.86 | (0.15) | −0.88 | (0.07) | 0.35 | (0.06) | ||||||
| 4 | 3 | 1.48 | (0.12) | −1.27 | (0.10) | −0.23 | (0.06) | ||||||
| 5 | 4 | 1.65 | (0.13) | −0.91 | (0.08) | 0.28 | (0.06) | 1.35 | (0.10) | ||||
| 6 | 4 | 1.28 | (0.11) | −1.13 | (0.10) | 0.20 | (0.07) | 1.59 | (0.13) | ||||
| 7 | 5 | 1.04 | (0.09) | −1.49 | (0.13) | 0.21 | (0.08) | 1.11 | (0.12) | 2.32 | (0.20) | 4.18 | (0.39) |
| 8 | 6 | 1.18 | (0.10) | −1.18 | (0.11) | 0.37 | (0.08) | 1.13 | (0.11) | 2.10 | (0.17) | 3.73 | (0.33) |