| Standard Deviation | classification |
| Sd > 4 | Extremely misclassified |
| 4 > Sd > 2 | very poorly rated |
| 2 > Sd > 1 | Misclassified |
| 1 > Sd > 0.7 | Moderately Rated |
| 0.7 > Sd > 0.5 | Moderately well ranked |
| 0.5 > Sd > 0.35 | Well rated |
| 0.35 > Sd | Highly rated |