| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| operant conditioning proposed by | 0.4 | 0.8 | 7995 | 35 | 32 |
| operant | 0.53 | 0.9 | 5712 | 28 | 7 |
| conditioning | 0.29 | 0.5 | 149 | 3 | 12 |
| proposed | 1.59 | 0.6 | 7358 | 87 | 8 |
| by | 0.38 | 0.2 | 1787 | 73 | 2 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| operant conditioning proposed by | 0.16 | 0.9 | 1690 | 59 |
