| Source | Type III sum of squares | Mean square | Sig. | Partial eta squared | ||
|---|---|---|---|---|---|---|
| Corrected model | 47.991 | 3 | 15.997 | 31.303 | .000 | .100 |
| Intercept | 354.967 | 1 | 354.967 | 694.605 | .000 | .450 |
| Grade | 47.991 | 3 | 15.997 | 31.303 | .000 | .100 |
| Error | 433.869 | 849 | .511 | |||
| Total | 2,021.497 | 853 | ||||
| Corrected total | 481.860 | 852 |