Comparing apples and oranges
Comparing apples and oranges
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DOI：
10.1067/mtc.2002.120329
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发表时间：
2002-01-01
影响因子：
6
通讯作者：
Blackstone, EH
中科院分区：
文献类型：
--
作者：
Blackstone, EH
因此，我的目的是(1)澄清引起苹果和橙子怀疑论的非随机化比较中问题的本质；(2)回顾以前解决该问题的尝试；(3)提出一种称为平衡分数的方法，该方法可以在一些非随机条件下实现苹果与苹果之间的比较；(4)在非技术细节中描述最简单的平衡分数--倾向分数的构造；(5)演示如何使用倾向分数；以及(6)讨论限制、陷阱和替代方案。
Therefore, my purpose is to (1) clarify the nature of the problem in nonrandomized comparisons that gives rise to apples-and-oranges skepticism;(2) review previous attempts to solve the problem;(3) present a method known as balancing scores that can achieve apples-to-apples comparisons under some nonrandomized conditions;(4) describe in nontechnical detail construction of the simplest balancing score, the propensity score;(5) demonstrate how the propensity score is used; and (6) discuss limitations, pitfalls, and alternatives.