HCR-20v3 Scores and Group Comparison for Physical Aggression
| Non-violent Mdn (range) | Violent Mdn (range) | Mann-Whitney U | r | |
|---|---|---|---|---|
| Historical | 15.8 (10–20) | 17.0 (11–20) | U = 76.5, z = −.99 | .19 |
| Clinical | 6.0 (3–9) | 7.5 (5–10) | U = 53.0, z = −2.10* | .40 |
| Risk management | 8.0 (2–9) | 8.5 (5–10) | U = 69.5, z = −1.34 | .25 |
| Total score | 29.1 (20–35) | 32.1 (24–38) | U = 57.5, z = −1.86 | .35 |
| Future violence | 1.0 (0–2) | 1.0 (0–2) | U = 42.0, z = −1.03 | .22 |
| Serious harm | 0.0 (0–2) | 1.0 (0–2) | U = 51.0, z = −.23 | .05 |
| Imminent violence | 0.0 (0–1) | 1.0 (0–2) | U = 7.0, z = −2.84** | .71 |