SAMPSI_RHO: Stata module to compute sample size for a Pearson correlation

Adrian Paul Mander ()

Statistical Software Components from Boston College Department of Economics

Abstract: sampsi_rho calculates either the sample size or power for a Pearson correlation. The formula for sample size is ((Za+Zb)/(delta))^2 + 3 where delta is the difference between test value and the null value, Za is the signficance Z-value and Zb is the power Z-value. The correlations are transformed using the Fisher z transformation 1/2ln((1+rho)/(1-rho)) this z is normally distributed with a standard deviation of 1/sqrt(N-3).

Language: Stata
Requires: Stata version 9.0
Keywords: sample size; Pearson correlation (search for similar items in EconPapers)
Date: 2006-10-11
Note: This module may be installed from within Stata by typing "ssc install sampsi_rho". Windows users should not attempt to download these files with a web browser.

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/s/sampsi_rho.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/s/sampsi_rho.hlp help file (text/plain)

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Persistent link: http://EconPapers.repec.org/RePEc:boc:bocode:s456774

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