| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| developmental history for adhd | 1.47 | 0.3 | 6964 | 81 | 30 |
| developmental | 0.67 | 0.1 | 9581 | 9 | 13 |
| history | 1.45 | 1 | 3995 | 94 | 7 |
| for | 0.99 | 0.3 | 986 | 89 | 3 |
| adhd | 1.74 | 0.9 | 7850 | 46 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| developmental history for adhd | 0.85 | 0.2 | 4559 | 41 |
| developmental history for adults | 0.14 | 0.2 | 868 | 14 |
| adhd developmental history questionnaire | 1.63 | 0.7 | 3064 | 59 |
| history of adhd timeline | 0.32 | 0.7 | 2386 | 80 |
| history of adhd and add | 0.77 | 0.3 | 2965 | 90 |
| history of adhd research | 1.23 | 0.1 | 3230 | 5 |
| when did adhd begin | 0.99 | 1 | 2874 | 54 |
| when was adhd invented | 1.02 | 0.5 | 5171 | 12 |
| when was adhd created | 1.15 | 1 | 4728 | 17 |
| when did adhd start | 1.21 | 0.5 | 1747 | 92 |
| when did adhd first appear | 0.41 | 0.2 | 7302 | 11 |
| when was adhd first discovered | 0.56 | 0.3 | 4733 | 79 |
| adhd history and physical | 0.4 | 0.4 | 5570 | 39 |
| when was adhd first identified | 0.5 | 0.4 | 6404 | 25 |
| history of adhd treatment | 0.65 | 0.9 | 1721 | 33 |
| what year was adhd discovered | 1.63 | 0.4 | 2965 | 51 |
| who first discovered adhd | 0.13 | 1 | 2634 | 46 |
| when was adhd first recognized | 1.31 | 0.8 | 519 | 49 |
| when did adhd become noticed | 1.89 | 1 | 3358 | 69 |
