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Observed intra-cluster correlation coefficients in a cluster survey sample of patient encounters in general practice in Australia
BACKGROUND: Cluster sample study designs are cost effective, however cluster samples violate the simple random sample assumption of independence of observations. Failure to account for the intra-cluster correlation of observations when sampling through clusters may lead to an under-powered study. Re...
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| Autores principales: | , |
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| Formato: | Artigo |
| Lenguaje: | Inglês |
| Publicado: |
BioMed Central
2004
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| Materias: | |
| Acceso en línea: | https://ncbi.nlm.nih.gov/pmc/articles/PMC545648/ https://ncbi.nlm.nih.gov/pubmed/15613248 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2288-4-30 |
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