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1 results

  • Confidence Regions for INDSCAL using the Jackknife and Bootstrap Techniques

  • Sharon L. Weinberg, J. Douglas Carroll, Harvey S. Cohen
  • Journal:
    Psychometrika / Volume 49 / Issue 4 / December 1984
    Published online by Cambridge University Press:
    01 January 2025, pp. 475-491

  • Bootstrap and jackknife techniques are used to estimate ellipsoidal confidence regions of group stimulus points derived from INDSCAL. The validity of these estimates is assessed through Monte Carlo analysis. Asymptotic estimates of confidence regions based on a MULTISCALE solution are also evaluated. Our findings suggest that the bootstrap and jackknife techniques may be used to provide statements regarding the accuracy of the relative locations of points in space. Our findings also suggest that MULTISCALE asymptotic estimates of confidence regions based on small samples provide an optimistic view of the actual statistical reliability of the solution.