| Perception of risk |
| Less Risky |
| More Risky |
| Voluntary |
| Involuntary |
| Familiar |
| Unfamiliar |
| Controllable |
| Uncontrollable |
| Controlled by
Self |
| Controlled by
Others |
| Not Memorable |
| Memorable |
| Not Dreaded |
| Dreaded |
| Chronic/Diffuse
in space and time |
| Acute/Focused
in time and space |
| Not Fatal |
| Fatal |
| Immediate |
| Delayed |
| Natural |
| Artificial |
| Individual
mitigation possible |
| Individual
mitigation not possible |
| Detectable |
| Undetectable |
| N5290, Sept. 27, 2004 |