Cargando…
Selection bias and subject refusal in a cluster-randomized controlled trial
BACKGROUND: Selection bias and non-participation bias are major methodological concerns which impact external validity. Cluster-randomized controlled trials are especially prone to selection bias as it is impractical to blind clusters to their allocation into intervention or control. This study asse...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5504663/ https://www.ncbi.nlm.nih.gov/pubmed/28693427 http://dx.doi.org/10.1186/s12874-017-0368-7 |