A nonparametric version of Williams' test for a randomized block design.

D E House

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PubMed · 3719055

A nonparametric version of Williams' test for a randomized block design.

D E House

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Abstract

A large-sample nonparametric version of Williams' test for comparing increasing doses of a substance with a zero-dose control response is given for observations from a randomized block experimental design. The method is based on Friedman-type ranks. Williams' test and the nonparametric equivalent for a one-way design are briefly described. The validity of the new method is shown and a numerical example is given.

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Animals Dose-Response Relationship, Drug Drug-Related Side Effects and Adverse Reactions Models, Biological Random Allocation Research Design Journal Article

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D E House. 1986. A nonparametric version of Williams' test for a randomized block design.. https://pubmed.ncbi.nlm.nih.gov/3719055/

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