Alternative methods for handling attrition - An illustration using data from the Fast Track evaluation
Alternative methods for handling attrition - An illustration using data from the Fast Track evaluation
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DOI：
10.1177/0193841x04264662
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发表时间：
2004-10-01
影响因子：
0.9
通讯作者：
Fang, GY
中科院分区：
文献类型：
--
作者：
Foster, EM;Fang, GY
使用快速通道干预评估的数据，本文说明了处理减员的三种方法。多重插补和可重复的最大似然估计产生的估计值与基于列表删除数据的估计值相似。一个允许选择性退出的小组选择模型显示，随着时间的推移，治疗组中高度攻击性的男孩会积累起来，并产生更大的治疗效果估计。相比之下，这种模式对女孩产生的治疗效果较小。文章的结论讨论了替代方法的优点和缺点，并概述了研究人员可能改善其处理自然减员的方法。
Using data from the evaluation of the Fast Track intervention, this article illustrates three methods for handling attrition. Multiple imputation and ignorable maximum likelihood estimation produce estimates that are similar to those based on listwise-deleted data. A panel selection model that allows for selective dropout reveals that highly aggressive boys accumulate in the treatment group over time and produces a larger estimate of treatment effect. In contrast, this model produces a smaller treatment effect for girls. The article's conclusion discusses the strengths and weaknesses of the alternative approaches and outlines ways in which researchers might improve their handling of attrition.