| Groups | F test statistic | Partial η2 | Effect size f | A priori power | Total sample size |
|---|---|---|---|---|---|
| All 27 groups | F(8,54) = 3.6903 (interaction)b | 0.3535 | 0.739453 | 80.4%a | 43a (27 groups) |
a
A total sample size of 162 will be used based on the planned comparison calculations making the power 99.9%.
b
10,000 simulations were run using the summary data to randomly assign data values and the interaction F statistic was computed for a 3-way ANOVA between subjects design. The average F statistic was calculated and used in the power calculations.