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The double jeopardy of clustered measurement and cluster randomisation
Michael S Kramer and colleagues suggest that double clustering might explain the negative results of some cluster randomised trials and describe some strategies for avoiding the problem
Autores principales: | , , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group Ltd.
2009
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2730439/ https://www.ncbi.nlm.nih.gov/pubmed/19700507 http://dx.doi.org/10.1136/bmj.b2900 |