Table 1 Principle of the 9-scale method.
Scale | Definition |
|---|---|
1 | Two factors are equally important. |
3 | One factor is slightly more important than another. |
5 | One factor is significantly more important than the other. |
7 | One factor is strongly more important than the other. |
9 | One factor is extremely more important than the other. |
2.4.6.8 | Median of the two adjacent judgments mentioned above. |
Reciprocal | If the scale from A to B is 3, then the scale from B to A is 1/3. |
