Some further results concerning regression to the mean.
Some further results concerning regression to the mean.
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关于均值回归的一些进一步结果。
DOI：
10.1093/oxfordjournals.aje.a113260
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发表时间：
1981
影响因子：
5
通讯作者：
R. Heller
中科院分区：
文献类型：
--
作者：
S. Chinn;R. Heller
代数公式推导出的平均效应的测量，其人口的平均值和方差随时间变化的回归，并根据初始值在任何定义的范围内选择的亚群。假设整个总体的值分布为正态分布。这些结果被应用于饮食干预研究中参与者的血浆胆固醇水平，其中一些人被选为具有高初始水平。该公式使干预的影响，从长期的变化和回归的平均研究，这是以前不可能的。
Algebraic formulae are derived for the regression to the mean effect for a measurement whose population mean and variance change over time and for subpopulations selected according to initial value in any defined range. The distribution of values for the whole population is assumed to be normal. The results are applied to plasma cholesterol levels of participants in a dietary intervention study, some of whom were selected as having high initial levels. The formulae enable the effects of intervention to be separated from secular change and regression to the mean in studies for which this was not previously possible.