Evaluation of a verbal–numerical probability scale Original Research Article

For purposes such as the development of decision support systems, the probabilities that model the uncertainties in the domain of application are usually elicited from domain experts. A number of elicitation methods is available. While constructing a real-life system, we however found none of these methods to be quite usable: they turned out to be too time-consuming and difficult for experts. In an earlier paper we described a verbal–numerical response scale we developed to facilitate elicitation of a large number of probabilities. In this paper we describe a study that justifies our claim that use of this verbal–numerical scale generally facilitates the assessment process.