Copyright David Ullman, Camas Inc.
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Confidence scales
 Impossibly    Unlikely      Questionably      Potentially     Feasibly     Perfectly
          Infeasibly      Doubtfully         Possibly            Likely       Definitely
       0.0     0.1      0.2      0.3      0.4     0.5       0.6     0.7      0.8      0.9     1.0
        0%   10%    20%    30%    40%    50%    60%    70%    80%   90%  100%
        Very Low             Low             Medium             High             Very High
       0.0     0.1      0.2      0.3      0.4     0.5       0.6     0.7      0.8      0.9     1.0
Evaluation risk
The risk of choosing a poor alternative