| Grade | Lexile 2 (D) | B | S.E. | Wald | df | Sig. | Exp(B) |
| 7 | Lexile 1(I) | 6.281 | 1.026 | 37.467 | 1 | 0.000 | 534.429 |
| Constant | −4.466 | 1.006 | 19.718 | 1 | 0.000 | 0.011 | |
| 10 | Lexile 1(I) | 6.022 | 0.779 | 59.742 | 1 | 0.000 | 412.500 |
| Constant | -4.500 | 0.711 | 40.052 | 1 | 0.000 | 0.011 |