Nominal-ordinal measures of association: a comparison of two measures.

@article{Berry2009NominalordinalMO,
  title={Nominal-ordinal measures of association: a comparison of two measures.},
  author={Kenneth J. Berry and Janis F Johnston and Paul W. Mielke},
  journal={Perceptual and motor skills},
  year={2009},
  volume={109 1},
  pages={285-94}
}
The measurement of the magnitude of association between a nominal independent variable and an ordinal dependent variable is an important, but neglected, component in psychological research. Two measures of nominal-ordinal association are described and compared. Resampling permutation methods are utilized to compute probability values for both measures.