| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| proquest central research database | 0.68 | 0.4 | 260 | 74 | 34 |
| proquest | 1.38 | 0.2 | 7448 | 80 | 8 |
| central | 0.65 | 0.4 | 279 | 31 | 7 |
| research | 1.62 | 0.6 | 4233 | 77 | 8 |
| database | 1.87 | 0.8 | 1310 | 62 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| proquest central research database | 0.61 | 0.6 | 677 | 86 |
