Abstract
In this paper, we use decomposable graphical models to describe the mechanisms of nonresponse in contingency tables classified by two binary variables, and we discuss identification of parameters in these models. For an unidentifiable model, we introduce covariates which are always observed such that this model becomes identifiable. We also give conditions for identifiability of odds ratios. These results are useful not only for data analysis but also for study design.
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Ma, WQ., Geng, Z. & Li, XT. Identification of Nonresponse Mechanisms for Two-Way Contingency Tables. Behaviormetrika 30, 125–144 (2003). https://doi.org/10.2333/bhmk.30.125
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DOI: https://doi.org/10.2333/bhmk.30.125