| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what are confounding variables | 0.77 | 0.1 | 3867 | 8 | 30 |
| what | 0.15 | 0.9 | 1959 | 33 | 4 |
| are | 1.36 | 0.4 | 5379 | 30 | 3 |
| confounding | 0.83 | 0.8 | 1118 | 68 | 11 |
| variables | 1.33 | 0.3 | 7053 | 70 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what are confounding variables | 1.49 | 0.1 | 8219 | 39 |
