SSIZEBI: Stata module to calculate sample size and power for the comparison of two or more proportions

Abdel G. Babiker ()
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Abdel G. Babiker: University College London Medical School

Statistical Software Components from Boston College Department of Economics

Abstract: ssizebi estimates power or total sample size for tests comparing K proportions. Power is calculated if n() is specified as a positive number, otherwise total sample size is estimated. ssizebi computes sample size/power for the (global/trend) unconditional chisquare test or the conditional test based on the hypergeometric distribution with the one-step Peto approximation to the odds ratio (OR). Sample size/power is calculated in the unconditional case under either local or distant alternatives. Under local alternatives (eg max(OR,1/OR)

Language: Stata
Requires: Stata version 5.0
Keywords: sampling; proportions; power of test (search for similar items in EconPapers)
Date: 1999-01-07
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http://fmwww.bc.edu/repec/bocode/s/ssizebi.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/s/ssizebi.hlp help file (text/plain)

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Persistent link: https://EconPapers.repec.org/RePEc:boc:bocode:s365701

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