| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| validation theory definition | 1.51 | 0.6 | 1527 | 65 | 28 |
| validation | 0.72 | 0.6 | 9005 | 86 | 10 |
| theory | 0.13 | 0.5 | 4676 | 49 | 6 |
| definition | 1.26 | 0.3 | 3991 | 52 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| validation theory definition | 0.4 | 0.8 | 8636 | 47 |
