Randomized Controlled Field Trials of Predictive Policing(预测警务的随机对照试验) 热度: Is the relationship among outcome variables shown in randomized trials(随机试验显示结果变量之间的关系吗) 热度: Innovative Microbial Outcomes in Randomized Control Trials(随机对照试验中的创新微生物结果) 热度: ...
Focusing on cluster randomized trials with a pretest and post-test of a quantitative outcome, this paper shows the equivalence of four methods of analysis: a three-level mixed (multilevel) regression for repeated measures with as levels cluster, person, and time, and allowing for unstructured ...
翻译 Cluster-RandomizedTrials 翻译 集群随机试验 以上结果来自机器翻译。 释义
Cluster randomized trialsIntracluster correlationStatistical designSample size estimationAnalysisScientists often use randomized controlled trials to compare a newly developed treatment to the existing one, or to a placebo. Patients are randomly assigned to a treatment, and they are compared with respect to...
Alexander N, Emerson P (2005) Analysis of incidence rates in cluster-randomized trials of interventions against recurrent infections, with an application to trachoma. Stat Med 24:2637–2647 CrossRef Breslow NE, Clayton DG (1993) Approximate inference in generalized linear mixed models. J Am Stat...
Randomized Controlled Field Trials of Predictive Policing(预测警务的随机对照试验) 热度: Cluster Randomized Trials(聚类随机试验) 热度: Cohort studies and Randomized Controlled Trial队列研究和随机对照试验 热度: JournalofEvaluationinClinicalPractice,
In cluster-randomized trials, entire groups (clusters) are randomized instead of individuals, often simplifying the logistics of a trial. However, this can require a larger sample size and introduce other biases into the design that must be considered.Designs that combine crossover with cluster ...
(although not all) cluster randomized trials (CRTs). Thus, the chapter begins by covering motivations for using a CRT design, basic correlation parameters, the variety of potential estimands, delineation and randomization of clusters, and sample size calculation. This is followed by sections on ...
More details on the analysis of such trials are provided below. In Section 2 we describe a trial being conducted in Washington state that uses a stepped wedge design. This motivating example provides a context for the theoretical and simulation results shown in Section 3 where we describe ...
In this paper, we address this by explaining how the required sample size in these multi-arm trials can be ascertained when data are to be analyzed using a linear mixed model. We then go on to describe how the design of such trials can be optimized to balance between minimizing the cost...