Generalized multiple indicators, multiple causes measurement error models. (April 2016)

• Record Type: Journal Article
• Authors: Tekwe, Carmen D.; Carter, Randy L.; Cullings, Harry M.
• Is Part Of: Statistical modelling. Volume 16:Number 2(2016)
• Page Start: 140
• Page End: 159
• Publication Date: 2016-04
• Subjects: atomic bomb survivor data -- Berkson error -- Generalized linear models -- instrumental variables -- measurement error -- MIMIC models; Linear models (Statistics) -- Periodicals; Mathematical models -- Periodicals; Modèles linéaires (Statistique) -- Périodiques; Modèles mathématiques -- Périodiques; Modèle statistique; Modèle linéaire; Modélisation statistique; Périodique électronique (Descripteur de forme); Ressource Internet (Descripteur de forme); 519.5011
• DOI: 10.1177/1471082X16638478
• Languages: English
• ISSNs: 1471-082X

Abstract

Generalized Multiple Indicators, Multiple Causes Measurement Error Models (G-MIMIC ME) can be used to study the effects of an unobservable latent variable on a set of outcomes when the causes of the latent variables are unobserved. The errors associated with the unobserved causal variables can be due to either bias recall or day-to-day variability. Another potential source of error, the Berkson error, is due to individual variations that arise from the assignment of group data to individual subjects. In this article, we accomplish the following: (a) extend the classical linear MIMIC models to allow both Berkson and classical measurement errors where the distributions of the outcome variables belong in the exponential family, (b) develop likelihood based estimation methods using the MC-EM algorithm and (c) estimate the variance of the classical measurement error associated with the approximation of the amount of radiation dose received by atomic bomb survivors at the time of their exposure. The G-MIMIC ME model is applied to study the effect of genetic damage, a latent construct based on exposure to radiation, and the effect of radiation dose on physical indicators of genetic damage.