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Estimating the proportion of true null hypotheses under dependency: A marginal bootstrap approach
Journal of Statistical Planning and Inference ( IF 0.8 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.jspi.2020.04.011
André Neumann , Taras Bodnar , Thorsten Dickhaus

Abstract Many estimators for the proportion of true null hypotheses in the literature, which are defined for independent p -values, struggle under dependence. In particular, the variance of the classical Schweder–Spjotvoll estimator increases with the degree of dependence among the p -values. We propose a technique based on the independent-component bootstrap, which considerably improves this behavior. The idea of our marginal bootstrap modification is to utilize the conditional independence of the bootstrapped p -values and bagging to reduce the variance of the estimator. The theoretical validity of the resulting Bootstrap-Schweder–Spjotvoll procedure is analyzed and its performance is illustrated on simulated data.

中文翻译:

估计依赖项下真实零假设的比例:边际引导方法

摘要 文献中为独立 p 值定义的真实零假设比例的许多估计量在依赖下挣扎。特别是,经典 Schweder-Spjotvoll 估计量的方差随着 p 值之间的依赖程度而增加。我们提出了一种基于独立组件引导程序的技术,它大大改善了这种行为。我们的边际自举修改的想法是利用自举 p 值和装袋的条件独立性来减少估计量的方差。分析了由此产生的 Bootstrap-Schweder-Spjotvoll 程序的理论有效性,并在模拟数据上说明了其性能。
更新日期:2021-01-01
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