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Calculating Sample Size for Studies with Expected All-or-None Nonadherence and Selection Bias
We develop sample size formulas for studies aiming to test mean differences between a treatment and control group when all-or-none nonadherence (noncompliance) and selection bias are expected. Recent work addressed the increased variances within groups defined by treatment assignment when nonadheren...
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| Publicado en: | Biometrics |
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| Autores principales: | , |
| Formato: | Artigo |
| Lenguaje: | Inglês |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4319571/ https://ncbi.nlm.nih.gov/pubmed/18759830 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1111/j.1541-0420.2008.01114.x |
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