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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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| Pubblicato in: | BMJ |
|---|---|
| Autori principali: | , , , , |
| Natura: | Artigo |
| Lingua: | Inglês |
| Pubblicazione: |
BMJ Publishing Group Ltd.
2017
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| Soggetti: | |
| Accesso online: | https://ncbi.nlm.nih.gov/pmc/articles/PMC5508848/ https://ncbi.nlm.nih.gov/pubmed/28710062 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1136/bmj.j3064 |
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