Scale aij | Definition |
1 | factor i is as important as factor j |
3 | factor i is a little more important than factor j |
5 | factor i is obviously more important than factor j |
7 | factor i is intensely more important than factor j |
9 | factor i is extremely more important than factor j |
2, 4, 6, 8 | the importance is between its front number and the latter number |
reciprocal | When compare j to i,the aji = 1/aij |