| Scale | Meaning |
| 1 | Comparing with 2 factors, both have the same importance |
| 3 | Comparing with 2 factors, The former is slightly more important than the latter |
| 5 | Comparing with 2 factors, The former is obviously more important than the latter |
| 7 | Comparing with 2 factors, The former is more important than the latter |
| 9 | Comparing with 2 factors, The former is extremely important than the latter |
| 2, 4, 6, 8 | The above adjacent judgment takes the middle value |
| Reciprocal | Comparing with 2 factors, The latter is more important than the former |