| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| extraneous variables vs confounding variables | 1.02 | 0.1 | 667 | 6 | 45 |
| extraneous | 0.16 | 0.8 | 4833 | 28 | 10 |
| variables | 0.14 | 0.2 | 3896 | 24 | 9 |
| vs | 1.8 | 0.8 | 7836 | 74 | 2 |
| confounding | 0.34 | 0.7 | 368 | 66 | 11 |
| variables | 0.35 | 0.8 | 578 | 21 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| extraneous variables vs confounding variables | 1.81 | 0.7 | 4862 | 42 |
