| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| why is a control group important in a study | 1.54 | 0.6 | 8886 | 15 |
| why is a control group important | 0.48 | 0.3 | 6310 | 24 |
| why is control group important in experiments | 0.76 | 0.1 | 1452 | 13 |
| why use a control group in research | 1.86 | 0.1 | 7566 | 1 |
| control group in a study | 0.28 | 0.2 | 8110 | 73 |
| importance of a control group in research | 0.28 | 0.6 | 9354 | 31 |
| why is a control group necessary | 1.92 | 0.6 | 7866 | 16 |
| purpose of a control group in research | 1.64 | 1 | 6581 | 8 |
| importance of having control group in science | 0.37 | 0.3 | 9780 | 38 |
| the importance of a control group | 0.59 | 0.4 | 4890 | 59 |
| importance of control group in an experiment | 1.1 | 0.6 | 2749 | 10 |
