, Volume 65, Issue 2, pp 199–215 | Cite as

Continuous time state space modeling of panel data by means of sem

  • Johan H. L. OudEmail author
  • Robert A. R. G. Jansen


Maximum likelihood parameter estimation of the continuous time linear stochastic state space model is considered on the basis of largeN discrete time data using a structural equation modeling (SEM) program. Random subject effects are allowed to be part of the model. The exact discrete model (EDM) is employed which links the discrete time model parameters to the underlying continuous time model parameters by means of nonlinear restrictions. The EDM is generalized to cover not only time-invariant parameters but also the cases of stepwise time-varying (piecewise time-invariant) parameters and parameters varying continuously over time according to a general polynomial scheme. The identification of the continuous time parameters is discussed and an educational example is presented.

Key words

continuous time state space modeling exact discrete model linear stochastic differential equations longitudinal structural equation modeling panel analysis 


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Copyright information

© The Psychometric Society 2000

Authors and Affiliations

  1. 1.Institute of Special educationUniversity of NijmegenNijmegenThe Netherlands

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