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Goodness of Fit Measure Based on Sample Isotone Regression of Mokken Double Monotonicity Model

  • Teresa Rivas Moya
Part of the Studies in Classification, Data Analysis, and Knowledge Organization book series (STUDIES CLASS)

Abstract

Based on concepts of Mokken Double Monotonicity model (1971, 1997) and Sample Isotone Regression (Barlow, Bartholomew, Bremmer & Brunk, 1972), a model goodness of fit measure is defined. It permits interpretation of the global deviation from Double Monotonicity in a set of dichotomous response items.

To this end, based on the order induced by the difficulty of the items, the disparity function associated with the proportion of positive and negative responses to pairs of items — given in the matrices P 11 and P 00 — is defined. In each matrix, the global deviation from Double Monotonicity is obtained as the sum of discrepancies between the proportions of responses observed on pairs of items and the disparities associated with these proportions.

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References

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Copyright information

© Springer-Verlag Berlin · Heidelberg 2000

Authors and Affiliations

  • Teresa Rivas Moya
    • 1
  1. 1.Department of Basic Psychology Psychobiology and Methodology of Behavioral ScienceMálaga UniversityMálagaSpain

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