, Volume 44, Issue 2, pp 179–194 | Cite as

Testing a unidimensional, qualitative unfolding model for attitudinal or developmental data

  • Mark L. Davison


Assuming that subject responses rank order stimuli by preference, statistical methods are presented for testing the hypothesis that responses conform to a unidimensional, qualitative unfolding model and to an a priori stimulus ordering. The model postulates that persons and stimulus variables are ordered along a single continuum and that subjects most prefer stimuli nearest their own position. The underlying continuum need not form an interval scale of the stimulus attribute. The general assumptions of the test for the unfolding model make it suitable for the analysis of structure in attitude responses, preference data, and developmental stage data.

Key words

chi square independence contingency tables psychological scaling 


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Copyright information

© The Psychometric Society 1979

Authors and Affiliations

  • Mark L. Davison
    • 1
  1. 1.Department of Social, Psychological, and Philosophical Foundations of EducationUniversity of MinnesotaMinneapolis

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