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Activity Number:
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87
- Invited ePoster Session: a Statistical Smörgåsbord
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Type:
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Invited
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Date/Time:
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Sunday, July 29, 2018 : 8:30 PM to 10:30 PM
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Sponsor:
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SSC
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Abstract #328823
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Title:
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Analysis of Paired Binary Data Subject to Misclassification Using a Random Effect Model
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Author(s):
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Hua Shen* and Richard John Cook
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Companies:
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University of Calgary and University of Waterloo
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Keywords:
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paired binary data;
misclassification ;
clustered latent variables;
random effect ;
diagnostic tests
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Abstract:
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Clustered data arise commonly in medical research where observations are obtained from subjects comprising distinct clusters thus grouped. The dependence of the data with clusters need to be accounted for and modeling binary data poses additional challenges. Moreover, misclassification is often encountered especially in the absence of definitive diagnostic tests. Ignorance of misclassification and naively taking the obtained diagnostic test result as the underlying truth can lead to severe consequences in many situations. This is investigated and addressed using maximum likelihood approach under a latent variable model. The proposed method is based on maximizing the marginal likelihood for paired binary data with random effects. By assuming a flexible and parametric family for the distribution of random effect, numerical integration and approximation is not demanded. The procedure also allows the evaluation of the accuracy of the medical diagnostic tests. In addition to the numerical studies demonstrating the performance of the proposed method, a stimulating study is used as illustration.
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Authors who are presenting talks have a * after their name.
