Java applets
for power and sample size |
Select the analysis to be used in your study: | This
software is intended to be useful
in planning statistical studies. It is not intended to be
used
for analysis of data that have already been collected. Each selection provides a graphical interface for studying the power of one or more tests. They include sliders (convertible to number-entry fields) for varying parameters, and a simple provision for graphing one variable against another. Each dialog window also offers a Help menu. Please read the Help menus before contacting me with questions. The "Balanced ANOVA" selection provides another dialog with a list of several popular experimental designs, plus a provision for specifying your own model. Note:
The dialogs open in separate
windows. If you're
running this on an Apple Macintosh, the applets' menus are added to the
screen menubar -- so, for example,
you'll
have
two "Help" menus there! You
may also download this
software to run it
on your own PC. |
Note:
These require a web
browser capable of running Java applets (version 1.1 or higher). If you
do not see a selection list above, chances are that you either have
disabled Java, your
browser is not new enough., or you need to download a JRE plug-in from java.sun.com.
Due to a
compatibility bug, many plug-ins size the applet window before allowing
for an additional strip with a security warning.; drag the bottom of
the window downward a bit to compensate.