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1 results

  • Convergence Theory for Partial Images and Revision of the Definition of Total Images

  • Peter Findeisen
  • Journal:
    Psychometrika / Volume 44 / Issue 3 / September 1979
    Published online by Cambridge University Press:
    01 January 2025, pp. 315-328

  • Guttman's assumption underlying his definition of “total images” is rejected: Partial images are not generally convergent everywhere. Even divergence everywhere is shown to be possible. The convergence type always found on partial images is convergence in quadratic mean; hence, total images are redefined as quadratic mean-limits. In determining the convergence type in special situations, the asymptotic properties of certain correlations are important, implying, in some cases, convergence almost everywhere, which is also effected by a countable population or multivariate normality or independent variables. The interpretations of a total image as a predictor, and a “common-factor score”, respectively, are made precise.