G*(EM)POWER Analysis

How to calculate and determine sample size for your research?

What is G*Power?

G*Power is a tool to compute statistical power analyses for many different t tests, F tests, χ2 tests, ztests and some exact tests. G*Power can also be used to compute effect sizes and to display graphically the results of power analyses.

Universität Düsseldorf: G*Power

G*Power has played a major contribution in academic publications and press for a long time such as:

• Bell, R., & Buchner, A. (in press). Memory enhanced for cheaters vs. non-cheaters. In T. K. Shackelford, & V. Weekes-Shackelford (Eds.), Encyclopedia of Evolutionary Psychological Science. Heidelberg: Springer. http://dx.doi.org/10.1007/978-3-319-16999-6_2633-1
• Bell, R., & Buchner, A. (in press). Social reasoning affected by rank (Mealey, Daood, Krage, 1996). In T. K. Shackelford, & V. Weekes-Shackelford (Eds.), Encyclopedia of Evolutionary Psychological Science. Heidelberg: Springer. http://dx.doi.org/10.1007/978-3-319-16999-6_2631-1
• Körner, U., Röer, J. P., Buchner, A., & Bell, R. (in press). Time of presentation affects auditory distraction: Changing-state and deviant sounds disrupt similar working memory processes…