HCR-20v3 Scores and Group Comparison for Verbal Aggression
| Non-violent Mdn (range) | Violent Mdn (range) | Mann-Whitney U | r | |
|---|---|---|---|---|
| Historical | 17.0 (12;20) | 16.2 (10;20) | U = 84.5, z = −.43 | .08 |
| Clinical | 6.0 (3–10) | 8.0 (4–9) | U = 63.0, z = −1.50 | .28 |
| Risk management | 8.0 (2–10) | 9.0 (5–10) | U = 61.5, z = −1.54 | .30 |
| Total score | 30.0 (20–37) | 33.2 (23–38) | U = 79.0, z = −.68 | .13 |
| Future violence | 1.0 (0–2) | 1.0 (0–2) | U = 40.5, z = −.93 | .20 |
| Serious harm | 1.0 (0–2) | 1.0 (0–2) | U = 54.0, z = −.00 | .00 |
| Imminent violence | 0.0 (0–2) | 1.0 (0–2) | U = 17.5, z = −1.49 | .37 |
Mdn = median; Future violence N: non-violent = 13; violent = 8; Serious harm N: non-violent = 12; violent =9; Imminent violence N: non-violent = 10; violent = 6; r = effect size.