| MAJOR RISK PERCEPTION | MINOR RISK PERCEPTION | EXAMPLE |
| Involuntary exposure | voluntary exposure | those who do not use a mobile phone perceive exposure to radio frequencies as a high risk. |
| Inability to control | ability to control | plane crash, for a pilot or a passenger |
| Unfamiliarity | familiarity | familiarity with environment (e.g. pilot) |
| Recent experience | lack of experience | similar previous experience |
| Dramatic risk | non dramatic risk | terrorist attack or car accident |
| Disparity | equity | when you are exposed to a risk (electric fields) but have no benefits |