DIMACS TR: 2005-16
Extending Power and Sample Size Approaches for McNemar's Procedure to General
Sign Tests
Author: Donald R. Hoover
ABSTRACT
Current software and textbooks present procedures to estimate power and sample
size for sign tests that only apply to settings where positive (i.e., X=1) or
negative (i.e., X=-1), but not neutral (i.e., X=0) outcomes occur. However,
many studies analyzed by sign tests involve the more general setting where
significant amounts of neutral outcomes can occur. This paper illustrates
application of existing power / sample size approaches and software that have
been developed for matched binary responses (McNemar's discordant pairs) to
general sign tests with neutral outcomes occurring. An application is made
to a recent study that the author collaborated on.
Key Words: McNemar's Procedure, Power, Sample Size, Sign Test
Paper Available at:
ftp://dimacs.rutgers.edu/pub/dimacs/TechnicalReports/TechReports/2005/2005-16.pdf
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