| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| internal validity synonym | 0.97 | 0.3 | 7505 | 13 | 25 |
| internal | 1.81 | 0.8 | 6151 | 55 | 8 |
| validity | 1.51 | 0.6 | 7161 | 22 | 8 |
| synonym | 0.84 | 0.8 | 9188 | 68 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| internal validity synonym | 1.78 | 0.1 | 9141 | 86 |
| interval validity synonym | 0.23 | 0.7 | 9139 | 14 |
| internal validity is synonymous with | 1.72 | 0.9 | 9130 | 86 |
