| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| previous studies showed that | 1.51 | 0.9 | 2119 | 89 | 28 |
| previous | 1.81 | 0.6 | 3984 | 70 | 8 |
| studies | 0.11 | 0.6 | 389 | 92 | 7 |
| showed | 0.41 | 1 | 2745 | 84 | 6 |
| that | 1.01 | 0.5 | 3327 | 71 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| previous studies showed that | 0.92 | 0.1 | 2736 | 25 |
| previous studies showed | 0.63 | 0.7 | 8174 | 89 |
| previous studies indicated that | 0.91 | 0.4 | 1531 | 79 |
| recent studies have shown that | 0.1 | 0.2 | 6666 | 55 |
| another study showed that | 1.5 | 0.7 | 6460 | 65 |
| recent studies show that | 0.64 | 0.2 | 4600 | 98 |
| several studies have shown that | 1.84 | 0.4 | 2032 | 67 |
| several recent studies have found that | 1.76 | 0.3 | 1815 | 47 |
| numerous studies have shown that | 0.27 | 0.9 | 8588 | 96 |
| existing studies have shown that | 1.29 | 0.9 | 4386 | 11 |
| some studies suggested that | 0.53 | 0.6 | 7102 | 96 |
| this study found that | 0.83 | 0.1 | 6207 | 42 |
