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1 results

  • A Minimum-Cost Network-Flow Solution to the Case V Thurstone Scaling Problem

  • James M. Lattin
  • Journal:
    Psychometrika / Volume 55 / Issue 2 / June 1990
    Published online by Cambridge University Press:
    01 January 2025, pp. 353-370

  • This paper presents an approach for determining unidimensional scale estimates that are relatively insensitive to limited inconsistencies in paired comparisons data. The solution procedure, shown to be a minimum-cost network-flow problem, is presented in conjunction with a sensitivity diagnostic that assesses the influence of a single pairwise comparison on traditional Thurstone (ordinary least squares) scale estimates. When the diagnostic indicates some source of distortion in the data, the network technique appears to be more successful than Thurstone scaling in preserving the interval scale properties of the estimates.