An IERI – International Educational Research Institute Journal
Average difficulty | Locations | ||||
---|---|---|---|---|---|
Item | b | b 4 | b 3 | b 2 | b 1 |
1 | 0.79 | ||||
2 | 0.64 | see Figure 2 | |||
3 | 0.94 | ||||
4 | 1.42 | −0.35 | 0.86 | 2.06 | 3.11 |
5 | 0.71 | −1.48 | 0.10 | 1.39 | 2.83 |
6 | 1.88 | 0.18 | 1.37 | 2.47 | 3.49 |
7 | 1.92 | 0.25 | 1.44 | 2.50 | 3.49 |
8 | 1.94 | 0.18 | 1.39 | 2.52 | 3.67 |
9 | 1.50 | −0.65 | 0.82 | 2.28 | 3.54 |