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Statistica Sinica 21 (2011), 1639-1663
doi:10.5705/ss.2010.065





PSEUDO-LIKELIHOOD INFERENCE FOR

REGRESSION MODELS WITH MISCLASSIFIED

AND MISMEASURED VARIABLES


Annamaria Guolo


University of Verona


Abstract: This paper investigates the use of a pseudo-likelihood approach for inference in regression models with covariates affected by measurement errors. The maximum pseudo-likelihood estimator is obtained through a Monte Carlo expectation-maximization type algorithm and its asymptotic properties are described. The finite sample performance of the pseudo-likelihood approach is investigated through simulation studies, and compared to a full likelihood approach and to regression calibration under different measurement error structures, as well as continuous or discrete covariates. In contrast to the full likelihood approach, our method is computationally fast while remaining competitive from an inferential perspective. Satisfactory results are also provided over regression calibration. Pseudo-likelihood and the competing methods are finally applied to the analysis of two data sets.



Key words and phrases: Differential error, maximum likelihood estimator, measurement error, Monte Carlo expectation-maximization algorithm, nondifferential error, regression calibration.

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