A note on Shirley's nonparametric test for comparing several dose levels with a zero-dose control |
| |
Authors: | D A Williams |
| |
Abstract: | Shirley (1977, Biometrics 33, 386-389) proposed a nonparametric version of Williams' test for determining the lowest dose level at which there is evidence of a toxic effect. A modification of Shirley's procedure is now proposed, which improves its power. |
| |
Keywords: | |
|
|