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Editors’ Review
G*Power is a free-to-use educational software designed for researchers, students, and statisticians who need to perform statistical power analyses across various tests. Developed by Heinrich Heine University Düsseldorf, this robust application simplifies the often complex process of determining appropriate sample sizes, calculating effect sizes, and visually interpreting statistical power.
Unlock statistical insights
G*Power stands out with its ability to compute power analyses for a wide array of statistical tests, including t-tests, F-tests, χ2-tests, z-tests, and several exact tests. The software also enables users to determine the necessary sample size before conducting a study, ensuring that experiments are adequately powered.
Plus, you can calculate effect sizes to compare findings and visualize data using graphs for proper interpretation. While incredibly powerful, some users find the interface less modern or aesthetically pleasing compared to some contemporary software. This can be a minor drawback for those accustomed to more visually refined applications.
Pros
- Extensive range of statistical tests supported
- Accurate sample size determination
- Calculation of effect sizes
- Clear graphical display of results
Cons
- Interface can feel dated
Bottom Line
Empowering robust research
Overall, G*Power is an essential utility for anyone involved in quantitative research. An invaluable tool for ensuring the methodological rigor of studies, it boasts a robust power analysis tool for various tests alongside intuitive graphical representations. It’s highly recommended for those who don’t mind the somewhat outdated interface.
What’s new in version 3.1.9.6
- Bug fixes in t-tests and z-tests
Used G*Power for Mac? Share your experience and help other users.
