Item response theory for longitudinal data: population parameter estimation

Dalton F. Andrade and Heliton R. Tavares

Journal of Multivariate Analysis, 2005, vol. 95, issue 1, 1-22

Abstract: In this work we propose IRT models to estimate ability distribution parameters of a population of individuals submitted to different tests along the time, having or not common items. The item parameters are considered known and several covariance structures are proposed to accommodate the possible dependence among the abilities of the same individual, measured at different instants. Maximum likelihood equations and some simulation results are presented.

Keywords: Longitudinal; data; Population; parameters; Logistic; model; Covariance; structures; Multivariate; latent; distribution (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (8)

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