A note on the shape of sample size functions of optimal adaptive two-stage designs
A note on the shape of sample size functions of optimal adaptive two-stage designs
复制标题
关于最优自适应两阶段设计的样本量函数形状的注记
DOI:
10.1080/03610926.2020.1776875
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Kieser M
中科院分区:
文献类型:
--
作者:
Pilz M;Kilian S;Kieser M
Adaptive two-stage designs for clinical trials are well understood from a statistical perspective. However, there is still few research on how the stage-two sample size looks like when it is regarded as a function of the first-stage test statistic. In this paper, a formal proof on the concavity of the sample size function is provided if the design’s second stage is optimized such that it minimizes the expected sample size under the alternative under constraints on maximal type I error rate and minimal power.
登录
查看更多内容
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
H. Kielhöfer
通讯作者:
H. Kielhöfer
影响因子:
1.9
作者:
Lehmacher, W;Wassmer, G
通讯作者:
Wassmer, G
影响因子:
2
作者:
Mehta, Cyrus R.;Pocock, Stuart J.
通讯作者:
Pocock, Stuart J.
影响因子:
1.9
作者:
M. Proschan;Sally A. Hunsberger
通讯作者:
Sally A. Hunsberger
影响因子:
2
作者:
Pilz, Maximilian;Kunzmann, Kevin;Kieser, Meinhard
通讯作者:
Kieser, Meinhard