The Visual ANOVA application lets you explore the effect on the -ratio of changes in the group means and standard deviations in a one-way ANOVA with four groups and 10 subjects per group.[more]
Use the controls to adjust the mean and standard deviation of each group. The -ratio is calculated automatically. The -ratio increases when one group mean is further apart from the other three. Increasing the standard deviations decreases the -ratio.[less]
This application was developed on the model of the "Understanding ANOVA Visually" website of the Psychology department of the University of Utah.