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How many repeated measures in repeated measures designs? Statistical issues for comparative trials
BACKGROUND: In many randomized and non-randomized comparative trials, researchers measure a continuous endpoint repeatedly in order to decrease intra-patient variability and thus increase statistical power. There has been little guidance in the literature as to selecting the optimal number of repeat...
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Formato: | Texto |
Lenguaje: | English |
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BioMed Central
2003
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC280679/ https://www.ncbi.nlm.nih.gov/pubmed/14580266 http://dx.doi.org/10.1186/1471-2288-3-22 |