scale

Meaning

1

It means that the two factors are of equal importance compared to each other

3

Element i is slightly more important than element j

5

Element i is significantly more important than element j

7

Element i is stronger more important than element j

9

Element i is extremely more important than element j

2, 4, 6, 8

Represents the intermediate value of the above adjoining judgment

reciprocal

The ratio of factors to their importance is 1/aij