Technical Reports : Probability Models in RCTs
Technical Reports : Probability Models in RCTs
The importance of the normality assumption in large public health data sets.
Summary: A demonstration of the robustness of the distribution-free inference on the mean.
Ref: Lumley T, Diehr P, Emerson S, Chen L, Annual Review Public Health 23: 151-69 (2002).
Some observations on the Wilcoxon rank sum test.
Summary: A discussion of the properties of the Wilcoxon rank sum test, particularly noting popular misconceptions about its scientific interpretation and its efficiency relative to the t test.
Ref: Emerson SS, UW Biostatistics Working Paper Series, Working Paper 380, BEPress (2011)
Adjusting for Baseline in Randomized Clinical Trials.
Summary: A discussion of the theory that guides the best approaches for analyzing RCT outcomes when a baseline measurement of that same variable is available.