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Biostatistics

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SelectedWorks

Zhao (Tony) Yang, Ph.D.

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Dose-Response And Finding In Phase Ii Clinical Studies — Mcp-Mod Methodologies, Zhao Yang Jan 2013

Dose-Response And Finding In Phase Ii Clinical Studies — Mcp-Mod Methodologies, Zhao Yang

Zhao (Tony) Yang, Ph.D.

This presentation give an overall introduction to the MCP-Mod methodology with detailed step-by-step demonstration.


Generalized Mcnemar's Test For Homogeneity Of The Marginal Distributions, Zhao Yang Jan 2008

Generalized Mcnemar's Test For Homogeneity Of The Marginal Distributions, Zhao Yang

Zhao (Tony) Yang, Ph.D.

In the matched-pairs data, McNemar's test (McNemar, 1947) can be applied only to the case in which there are two possible categories for the outcome. In practice, however, it is possible that the outcomes are classified into multiple categories. Under this situation, the test statistic proposed by Stuart (1955) and Maxwell (1970) is useful; it is actually the generalization of the McNemar's test, commonly referred to as generalized McNemar's or Stuart-Maxwell test. There is no public available SAS program to calculate this statistic, the author has developed a SAS macro (the code is detailed in appendix) to perform this test …