Conduct analysis operations on different power systems and models in the applications and collect data for integration into testing routines such as tests, F tests, χ2 tests, z tests and some exact tests. The application also supports effect size comparison and result visualization.
GPower 3.1.97 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The latest version of GPower can be downloaded for PCs running Windows XP/Vista/7/8/10/11, 32-bit.
This free program is a product of Heinrich-Heine-Universität Düsseldorf. Commonly, this program's installer has the following filenames: GPowerNT.exe, GPower 3.1.exe, GPower.exe, _4FB65815EC9145ED0F40DE.exe and _ED02528243DD24F863CB97.exe etc.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The following versions: 3.1 and 3.0 are the most frequently downloaded ones by the program users. GPower lies within Education Tools, more precisely Science Tools.
From the developer:
G*Power is a tool to compute statistical power analyses for many different t tests, F tests, χ2 tests, z tests and some exact tests. G*Power can also be used to compute effect sizes and to display graphically the results of power analyses. The software also allows you to generate graphs based on the data you input.
You may want to check out more software, such as MathPlayer, ERDAS IMAGINE or LINGO, which might be related to GPower.