Table 4 The distribution of the sample students at each level of the LP
Level | Range of ability value | Percentage | Sample mean ability value |
|---|---|---|---|
Level 4 | > 1.105 | 23.0% | 2.34 |
Level 3 | -1.535 —1.105 | 58.8% | -0.34 |
Level 2 | -2.88 — -1.535 | 17.3% | -1.88 |
Level 1 | < -2.88 | 0.9% | -3.13 |