| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ecological study design definition | 1.59 | 0.6 | 7904 | 43 | 34 |
| ecological | 1.18 | 0.9 | 9456 | 41 | 10 |
| study | 0.89 | 0.3 | 1474 | 51 | 5 |
| design | 0.91 | 0.8 | 436 | 29 | 6 |
| definition | 1.14 | 0.6 | 9915 | 56 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ecological study design definition | 0.61 | 0.7 | 6733 | 80 |
