| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| define a control group | 1.29 | 0.9 | 1588 | 65 | 22 |
| define | 1.52 | 0.1 | 9469 | 79 | 6 |
| a | 0.4 | 0.6 | 309 | 37 | 1 |
| control | 1.35 | 0.2 | 8709 | 91 | 7 |
| group | 1.53 | 0.5 | 154 | 88 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| define a control group | 0.16 | 1 | 1895 | 26 |
