| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| are secondary sources valid | 0.45 | 1 | 7984 | 2 | 27 |
| are | 0.23 | 0.8 | 9077 | 38 | 3 |
| secondary | 1.86 | 0.6 | 4087 | 36 | 9 |
| sources | 1.55 | 0.3 | 6131 | 16 | 7 |
| valid | 0.83 | 0.2 | 9190 | 14 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| are secondary sources valid | 1.54 | 0.5 | 6256 | 33 |
| validity and reliability of secondary sources | 1.76 | 0.6 | 3465 | 43 |
| validity of secondary sources | 0.45 | 0.9 | 1159 | 14 |
| are secondary sources reliable | 0.15 | 0.8 | 7820 | 31 |
| are secondary sources credible | 1.05 | 0.7 | 2475 | 21 |
| why secondary sources are relevant | 0.74 | 0.4 | 7108 | 62 |
| what are not secondary sources | 0.25 | 0.5 | 8060 | 7 |
| what are considered secondary sources | 0.35 | 1 | 7531 | 66 |
| secondary sources are valuable because they | 0.84 | 0.6 | 9294 | 81 |
| why secondary sources are not original | 0.8 | 0.2 | 3353 | 4 |
| significance of secondary sources | 0.51 | 0.8 | 5608 | 12 |
| verifiable with secondary sources | 1.01 | 1 | 4580 | 85 |
| what qualifies as a secondary source | 1.33 | 0.7 | 6288 | 55 |
| what makes a secondary source reliable | 0.63 | 0.2 | 9251 | 52 |
