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Discussion One of "The Statistical Evaluation of Categorical Measurements: 'Simple Scales, but Treacherous Complexity Underneath'"

Summary: The paper "The Statistical Evaluation of Categorical Measurements: Simple Scales, but Treacherous Complexity Underneath" by Jeroen de Mast, Thomas Akkerhuis, and Tashi Erdmann (Quality Engineering, Volume 26, Issue 1, pp. 16-32), addresses the important and challenging task of assessing the performance of categorical measurement systems. This discussion focuses on on the assessment of a single binary measurement system in a specific context that is commonly found in the manufacturing industry. In Sections 4 and 5 of de Mast’s paper, the authors address some of the issues encountered in this particular context and also propose a new method for analysis. The authors' goal in this discussion is to further clarify some of the concepts and statistical models commonly used in this context, to give an alternative to the method proposed in de Mast’s paper, and to contrast the two methods.

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  • Topics: Sampling
  • Keywords: Measurement system, Gage Repeatability and reproducibility studies (GR&R), Measurement error, Operating Characteristic (OC) curve, Inspection sampling, Case study, Manufacturing
  • Author: Danila, Oana; MacKay, R. Jock; Steiner, Stefan H.;
  • Journal: Quality Engineering