Power on X is an easy to use program for calculating the statistical power of tests. Calculations can be a priori (performed on data derived from a pilot or previous studies) or post hoc where the data has already been derived. At present Power on X will perform power calculations based on one and two-tailed t-Tests of means or correlations.
If you have any questions about Power on X or any problems with the program please e-mail .
We can be reached by e-mail at: (by far the easiest, cheapest and quickest route!).
You can contact MMISoftware at:
PO Box 181
Newcastle upon Tyne