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1 results

  • Estimating the Parameters of the Latent Population Distribution

  • Erling Andersen, Mette Madsen
  • Journal:
    Psychometrika / Volume 42 / Issue 3 / September 1977
    Published online by Cambridge University Press:
    01 January 2025, pp. 357-374

  • Under consideration is a test battery of binary items. The responses of n individuals are assumed to follow a Rasch model. It is further assumed that the latent individual parameters are distributed within a given population in accordance with a normal distribution. Methods are then considered for estimating the mean and variance of this latent population distribution. Also considered are methods for checking whether a normal population distribution fits the data. The developed methods are applied to data from an achievement test and from an attitude test.