Linear Model Selection When Covariates Contain Errors

Xinyu Zhang, Haiying Wang, Yanyuan Ma and Raymond J. Carroll

Journal of the American Statistical Association, 2017, vol. 112, issue 520, 1553-1561

Abstract: Prediction precision is arguably the most relevant criterion of a model in practice and is often a sought after property. A common difficulty with covariates measured with errors is the impossibility of performing prediction evaluation on the data even if a model is completely given without any unknown parameters. We bypass this inherent difficulty by using special properties on moment relations in linear regression models with measurement errors. The end product is a model selection procedure that achieves the same optimality properties that are achieved in classical linear regression models without covariate measurement error. Asymptotically, the procedure selects the model with the minimum prediction error in general, and selects the smallest correct model if the regression relation is indeed linear. Our model selection procedure is useful in prediction when future covariates without measurement error become available, for example, due to improved technology or better management and design of data collection procedures. Supplementary materials for this article are available online.

Date: 2017
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Citations: View citations in EconPapers (5)

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DOI: 10.1080/01621459.2016.1219262

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