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Design and evaluation of ranking-type Delphi studies using best- worst-scaling

机译:使用最佳-最差尺度设计和评估排名型Delphi研究

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摘要

The ranking-type Delphi method has received widespread use in a large number of research areas. In order to rank a set of items, ranking-type Delphi studies use different ranking approaches which may be biased. This is intensified by the fact that the number of issues a participant can reasonably rank is limited. This paper describes an approach for the design and evaluation of ranking-type Delphi studies using best-worst-scaling (BWS). The statistical BWS design is based on a balanced incomplete block design to construct the comparison sets. The statistical evaluation encompasses the measurement of stability and consensus with the use of the coefficient of variation. Overall, our approach (1) enables to design a ranking with up to 22 items in a manner that participants can reasonably rank, (2) avoids and overcomes shortcomings of common ranking approaches, and (3) offers a statistical procedure for an unambiguous evaluation.
机译:排序型德尔菲方法已在许多研究领域中得到广泛使用。为了对一组项目进行排名,排名类型的Delphi研究使用了可能有偏差的不同排名方法。参与者可以合理排名的问题数量受到限制这一事实加剧了这一点。本文介绍了一种使用最差标度(BWS)设计和评估排名型Delphi研究的方法。统计BWS设计基于平衡不完全块设计来构造比较集。统计评估包括使用变异系数来衡量稳定性和共识性。总体而言,我们的方法(1)能够以参与者可以合理地进行排名的方式设计多达22个项目的排名,(2)避免并克服了常见排名方法的缺点,并且(3)提供了用于明确评估的统计程序。

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