ArticlePsychometrika2025
Modeling Missing at Random Neuropsychological Test Scores Using a Mixture of Binomial Product Experts.
Article in Psychometrika, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Multivariate bounded discrete data arises in many fields. In the setting of dementia studies, such data are collected when individuals complete neuropsychological tests. We outline a modeling and inference procedure that can model the joint distribution conditional on baseline covariates, leveraging previous work on mixtures of experts and latent class models. Furthermore, we illustrate how the work can be extended when the outcome data are missing at random using a nested EM algorithm. The proposed model can incorporate covariate information and perform imputation and clustering. We apply our model to simulated data and an Alzheimer's disease data set.
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