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A priori postulated and real power in cluster randomized trials: mind the gap
BACKGROUND: Cluster randomization design is increasingly used for the evaluation of health-care, screening or educational interventions. The intraclass correlation coefficient (ICC) defines the clustering effect and be specified during planning. The aim of this work is to study the influence of the...
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| Главные авторы: | , , |
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| Формат: | Artigo |
| Язык: | Inglês |
| Опубликовано: |
BioMed Central
2005
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| Предметы: | |
| Online-ссылка: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1190183/ https://ncbi.nlm.nih.gov/pubmed/16109162 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2288-5-25 |
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