Worthiness Based Interpretation of Equi-distanced Performance Scales


Within the paradigm of value-focusing thinking (Keeney, 1996), a goal-driven approach is proposed to score levels of ordinal performance scale. This approach, which would satisfy the requirement of ”relevance to decision-maker’s purpose”, is based on a principle of worthiness. Such a principle is grounded on an intrinsic substantive meaning. Furthermore, it could be implemented standardized also over a reference statistical setup. At light of a certain sequential evaluation process, over hierarchy of binary goals, we interpret why praxis of equi-distanced scaling is ”naive” and potentially misleading in performance evaluating.

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Keywords: equi-distanced interval scale; level scoring; performance scaling

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