Exercise

Effect size

All the variables you calculated in the previous exercises are preloaded in your workspace. Type ls() in the console to have a look at what's there. In this exercise, you will calculate eta-squared, which helps you estimate effect size.

Instructions

100 XP

Compute the total sum of squares. Use the sums of squares ss_cond and ss_rm that you calculated earlier.
Compute eta-squared. Use the sums of squares ss_cond your new object ss_total.

Take Hint (-30 XP)