Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

"Immediate form" programs to estimate sample size and power when the standard deviation of costs and the standard deviation of effects are common for two treatment groups (cess1i and cepow1i) and to estimate sample size and power when the standard deviation of costs and the standard deviation of effects differ between two treatment groups (cess2i and cepow2i).  The program called ssizeprgdoc provides brief documentation for the programs.  Also included is a log file that demonstrates use of the 4 programs.