It offers a wide range of general statistics in the Bayesian framework but is generally more geared towards more advanced users. Other programs, like MX are completely free.Īn invaluable resource for the Bayesian statisticians, WINBUGS, is freely available from the Bugs Project. AMOS, LISREL, and Mplus all offer limited free version on their websites. These versions are necessarily limited in its functionality but are sufficient to aquatint yourself with the software.
Many schools have site-licenses or computer labs equipped with SEM packages, but it is also possible to freely download student demo versions of the most popular programs.
Structural Equation Models (SEM) are ever increasingly used but need special software to be estimated. It can be downloaded from Pennsylvania State University. Joe Schafer and his team at Penn State University have developed the freeware program NORM, which delivers this state-of-the-art technique with ease. Multiple Imputation, a new and important technique to handle missing data, is not supported by many general use packages yet. The user-friendly and intuitive interface along with the graphical presentation makes Gpower a great choice for power analysis. Gpower calculates required sample size, minimum needed effect size, and expected power, for a wide variety of experimental designs. It is freely available for download from Heinrich-Heine-Universität.
Here is a (non-comprehensive) list of some of the freely available statistics software:Ī great freeware resource to calculate statistical power for various research designs is GPower, developed by Franz Faul and colleagues, currently in Version 3. Fortunately, many programs that perform these operations are freely available on the Internet. Sometimes however, researchers are interested in more uncommon methods for which they require special statistical software. Major statistical packages, like SPSS or SAS, offer a wide variety of data analytic techniques. In this column, the students will present useful information that other graduate students need to know! Visit the Science Student Council to learn more about the activities of the SSC. The Science Student Council is a group of nine graduate students who spend a couple of weekends a year with the Science staff, advising on programs and activities that would benefit graduate students in psychological science.