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On a metric, unidimensional unfolding model for attitudinal and developmental data

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Abstract

If stimulus responses are linearly related to squared distances between stimulus scale values and person scores along a latent continuum, (a) the stimulus × stimulus correlation matrix will display a simplex-like pattern, (b) the signs of first-order partial correlations can be specified in an empirically testable manner, and (c) the variables will have a semicircular, two-factor structure. Along the semicircle, variables will be ordered by their positions on the latent dimension. The above results suggest procedures for examining the appropriateness of the model and procedures for ordering the stimuli. Applications to developmental and attitudinal data are discussed.

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Authors and Affiliations

  1. Department of Social, Psychological, and Philosophical Foundations of Education, University of Minnesota, 330 Burton Hall, Minneapolis, Minnesota

    Mark L. Davison

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  1. Mark L. Davison
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Additional information

This research was supported by a grant from the Graduate School of the University of Minnesota to the author and by a grant from the U. S. Public Health Service (Grant No. 1-R01-MH27861-01) to Dr. James Rest, Principal Investigator.

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Davison, M.L. On a metric, unidimensional unfolding model for attitudinal and developmental data. Psychometrika 42, 523–548 (1977). https://doi.org/10.1007/BF02295977

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  • DOI: https://doi.org/10.1007/BF02295977

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