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How to design efficient cluster randomised trials

Cluster randomised trials have diminishing returns in power and precision as cluster size increases. Making the cluster a lot larger while keeping the number of clusters fixed might yield only a very small increase in power and precision, owing to the intracluster correlation. Identifying the point...

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Detalles Bibliográficos
Autores principales:	Hemming, K, Eldridge, S, Forbes, G, Weijer, C, Taljaard, M
Formato:	Online Artículo Texto
Lenguaje:	English
Publicado:	BMJ Publishing Group Ltd. 2017
Materias:	Research Methods & Reporting
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5508848/ https://www.ncbi.nlm.nih.gov/pubmed/28710062 http://dx.doi.org/10.1136/bmj.j3064

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