Estimating the Standard Error of the Impact Estimator in Individually Randomized Trials With Clustering
Estimating the Standard Error of the Impact Estimator in Individually Randomized Trials With Clustering
复制标题
通过聚类估计单独随机试验中影响估计器的标准误差
DOI:
10.1080/19345747.2015.1086911
复制
发表时间:
2014
影响因子:
1.8
通讯作者:
D. McCaffrey
中科院分区:
文献类型:
--
作者:
Michael J. Weiss;J. R. Lockwood;D. McCaffrey
ABSTRACT In the “individually randomized group treatment” (IRGT) experimental design, individuals are first randomly assigned to a treatment arm or a control arm, but then within each arm, are grouped together (e.g., within classrooms/schools, through shared case managers, in group therapy sessions, through shared doctors, etc.) to receive services. In the common setting where the second-stage grouping is not experimentally controlled, we demonstrate that the standard error estimators for the estimated treatment effects from both random and fixed effects models are biased because parameters required to compute the standard errors are not identifiable from the data. We discuss implications for designing and analyzing IRGTs and provide suggestions for mitigating the bias.
影响因子:
5.9
作者:
Crits-Christoph,P;Mintz,J
通讯作者:
Mintz,J