, Volume 55, Issue 1, pp 107-122

First online:

Latent curve analysis

  • William MeredithAffiliated withDepartment of Psychology, University of California
  • , John TisakAffiliated withBowling Green State University

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As a method for representing development, latent trait theory is presented in terms of a statistical model containing individual parameters and a structure on both the first and second moments of the random variables reflecting growth. Maximum likelihood parameter estimates and associated asymptotic tests follow directly. These procedures may be viewed as an alternative to standard repeated measures ANOVA and to first-order auto-regressive methods. As formulated, the model encompasses cohort sequential designs and allow for period or practice effects. A numerical illustration using data initially collected by Nesselroade and Baltes is presented.

Key words

longitudinal analysis individual growth curves structural equation modeling