Robust likelihood inferences for multivariate correlated data

Chien-Hung Chen and Tsung-Shan Tsou

Journal of Applied Statistics, 2011, vol. 38, issue 12, 2901-2910

Abstract: Multivariate normal, due to its well-established theories, is commonly utilized to analyze correlated data of various types. However, the validity of the resultant inference is, more often than not, erroneous if the model assumption fails. We present a modification for making the multivariate normal likelihood acclimatize itself to general correlated data. The modified likelihood is asymptotically legitimate for any true underlying joint distributions so long as they have finite second moments. One can, hence, acquire full likelihood inference without knowing the true random mechanisms underlying the data. Simulations and real data analysis are provided to demonstrate the merit of our proposed parametric robust method.

Date: 2011
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DOI: 10.1080/02664763.2011.573539

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