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1 results

  • Estimating Latent Correlations between Repeated Testings

  • Erling B. Andersen
  • Journal:
    Psychometrika / Volume 50 / Issue 1 / March 1985
    Published online by Cambridge University Press:
    01 January 2025, pp. 3-16

  • A model for longitudinal latent structure analysis is proposed. We assume that test scores for a given mental or attitudinal test are observed for the same individuals at two different points in time. The purpose of the analysis is to fit a model that combines the values of the latent variable at the two time points in a two-dimensional latent density. The correlation coefficient between the two values of the latent variable can then be estimated. The theory and methods are illustrated by a Danish dataset concerning psychic vulnerability.