Table 1 Saaty scale for various elements comparison Saaty (1980)
Scale | Judgment of preference | Description |
|---|---|---|
1 | Equally important | Two factors contribute equally to the objective |
3 | Moderately important | Experience and judgment slightly favour one over the other |
5 | Important | Experience and judgment strongly important favour one over the other |
7 | Very strongly important | Experience and judgment strongly important favour one over the other |
9 | Extremely important | The evidence favouring one over the other is of the highest possible validity |
2, 4, 6, 8 | Intermediate preference between adjacent scales | When compromised is needed |