Software Overview
Power and Precision is a stand-alone statistical software package that is used to find the sample size for a planned study.
The program features an unusually clear interface, and many tools to assist the user in developing an understanding of power analysis. It incorporates the ability to create tables, graphs, and reports with a single click. It includes a number of features that are helpful for teaching power analysis, and others that allow the researcher to explain and justify the selection of a sample size for grant applications.
This statistical program is currently in use in more than 8,000 institutions. Our clients include several thousand universities, numerous consulting firms and research institutes, many major pharmaceutical companies, various government agencies including the FDA and the CDC, as well as numerous other entities both in the U.S. and abroad.
The program includes a 300 page manual that includes a comprehensive introduction to power analysis as well as worked examples and algorithms for all procedures.
Download the free trial version of the software.
Work interactively!
- Interactive guide walks you through all the steps in the power analysis
- Modify any element in the study and immediately see the impact on power
- Use a wide array of tools to visualize the effect size and to understand the impact of alpha, effect size, and sample size
Create A Report with a Single Click!
- The program generates a lucid, comprehensive report that explains the study design, assumptions, and power.
- The report serves as a teaching tool and may also be used in the statistics section of a study proposal or grant application
- Export to Word™ or other word processing program
Create Tables and Graphs with a Single Click!
- Get the big picture in just seconds! Use graphs to quickly evaluate any number of options for study design.
- Export to Word™, Excel™, PowerPoint™ and other programs.
- Include the graphs in your presentation or grant application to justify your selection of a sample size.
"I've been in love with the earlier version of your program for years, but this one is really amazing."
Brenda J. Shields - Columbus, OH
Power and Precision
Power and Precision is a statistical power analysis software package for calculation of a sample size for a planned study. The program features an unusually clear interface, and many tools to assist the user in developing an understanding of power analysis.