| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| internal validity definition in research | 1.28 | 0.5 | 8582 | 44 | 40 |
| internal | 0.43 | 0.2 | 8989 | 48 | 8 |
| validity | 1.82 | 1 | 2919 | 80 | 8 |
| definition | 0.15 | 0.1 | 4882 | 97 | 10 |
| in | 1.42 | 0.8 | 6463 | 100 | 2 |
| research | 1.09 | 1 | 7953 | 32 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| internal validity definition in research | 0.54 | 0.1 | 3239 | 34 |
