Scaling

Meaning

1

Means to compare two factors with the same importance

3

Means to compare two factors, one factor is slightly more important than the other

5

Means to compare two factors, one factor is obviously more important than the other

7

Means to compare two factors, one factor is more important than the other

9

Means to compare two factors, one factor is extremely important than the other

2, 4, 6, 8

The median of the above two adjacent judgments

reciprocal

Judgment aij of the comparison of factors i and j, then the judgment of factors j and i aji = 1/aij