Notes on Exact Power Calculations for t Tests and Analysis of Covariance
| Autor: | Tang, Yongqiang |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Statistics in Biopharmaceutical Research 2020 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1080/19466315.2019.1707110 |
| Popis: | Tang derived the exact power formulae for t tests and analysis of covariance (ANCOVA) in superiority, noninferiority and equivalence trials. The power calculation in equivalence trials can be simplified by using Owen's Q function, which is available in standard statistical software. We extend the exact power determination method for ANCOVA to unstratified and stratified multi-arm randomized trials. The method is applied to the design of multi-arm trials and gold standard noninferiority trials. Comment: 5 pages |
| Databáze: | arXiv |
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