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Bias, precision and statistical power of analysis of covariance in the analysis of randomized trials with baseline imbalance: a simulation study
BACKGROUND: Analysis of variance (ANOVA), change-score analysis (CSA) and analysis of covariance (ANCOVA) respond differently to baseline imbalance in randomized controlled trials. However, no empirical studies appear to have quantified the differential bias and precision of estimates derived from t...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3986434/ https://www.ncbi.nlm.nih.gov/pubmed/24712304 http://dx.doi.org/10.1186/1471-2288-14-49 |