| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| control group in research definition | 0.87 | 0.1 | 4333 | 90 | 36 |
| control | 1.12 | 1 | 2653 | 62 | 7 |
| group | 1.39 | 0.8 | 6407 | 12 | 5 |
| in | 0.66 | 0.3 | 4338 | 68 | 2 |
| research | 0.32 | 0.4 | 8325 | 28 | 8 |
| definition | 0.84 | 0.4 | 823 | 86 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| control group in research definition | 1.9 | 0.4 | 1408 | 49 |
