| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| validity of measurement definition | 1.72 | 0.2 | 2410 | 19 | 34 |
| validity | 1.19 | 0.1 | 5593 | 45 | 8 |
| of | 1.14 | 0.9 | 3794 | 64 | 2 |
| measurement | 1.31 | 0.6 | 6776 | 13 | 11 |
| definition | 0.35 | 0.5 | 8891 | 80 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| validity of measurement definition | 1.28 | 0.4 | 7939 | 58 |
