Author(s): Rafał Mantiuk, María Pérez Ortiz

License: MIT

Category: Quality Analysis

Updated:

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This is a set of Matlab functions for scaling pairwise comparison experiment results based on Thurstone’s model V assumptions.

The main features:

  • The scaling can work with imbalanced and incomplete data, in which not all pairs are compared, and some pairs are compared more often than others.
  • Additional priors reduce bias due to the non-linear nature of the problem.
  • Outlier rejection to screen observers that perform differently than the rest.
  • The code can compute confidence intervals using bootstrapping.