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Risk of bias: a simulation study of power to detect study-level moderator effects in meta-analysis
BACKGROUND: There are both theoretical and empirical reasons to believe that design and execution factors are associated with bias in controlled trials. Statistically significant moderator effects, such as the effect of trial quality on treatment effect sizes, are rarely detected in individual meta-...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4219184/ https://www.ncbi.nlm.nih.gov/pubmed/24286208 http://dx.doi.org/10.1186/2046-4053-2-107 |