, Volume 43, Issue 1, pp 123–126 | Cite as

A note on parameter estimation for Lazarsfeld's latent class analysis

  • Anton K. Formann
Notes And Comments


As the literature indicates, no method is presently available which takes explicitly into account that the parameters of Lazarsfeld's latent class analysis are defined as probabilities and are therefore restricted to the interval [0, 1]. In the present paper an appropriate transform on the parameters is performed in order to satisfy this constraint, and the estimation of the transformed parameters according to the maximum likelihood principle is outlined. In the sequel, a numerical example is given for which the basis solution and the usual maximum likelihood method failed. The different results are compared and the advantages of the proposed method discussed.

Key words

latent class analysis maximum likelihood method parameter transformation 


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Copyright information

© Psychometric Society 1978

Authors and Affiliations

  • Anton K. Formann
    • 1
  1. 1.Psychologisches Institut der Universität WienWienAustria

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