| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| confounding variable definition | 0.14 | 1 | 9433 | 44 | 31 |
| confounding | 0.11 | 0.3 | 4495 | 96 | 11 |
| variable | 0.22 | 0.6 | 7836 | 17 | 8 |
| definition | 0.64 | 0.7 | 3267 | 98 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| confounding variable definition | 0.08 | 0.6 | 9547 | 46 |
