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Dr. Lazzeroni is a statistician and data scientist who develops and implements models, methods and algorithms for complex, and sometimes not-so-complex, data in medical science and biology. She is also interested in the interplay between fundamental statistical properties (such as variability, bias, p-values, and replication) and how scientists use and interpret data in practice. Much of her research has been in methodological and applied statistical genetics: including the invention of the Plaid bi-clustering model for gene expression data; methods for twin, genetic association, and family studies; and the problem of large-scale multiple testing and estimation in high dimensional biological arrays.