| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| selection bias occurs when | 0.02 | 0.6 | 7110 | 47 | 26 |
| selection | 0.18 | 1 | 5349 | 86 | 9 |
| bias | 0.07 | 0.7 | 695 | 93 | 4 |
| occurs | 1.76 | 1 | 5769 | 11 | 6 |
| when | 0.25 | 0.7 | 4132 | 49 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| selection bias occurs when | 0.99 | 0.8 | 1312 | 47 |
