3.8. Sample Size Simulation
Consistent with the bootstrap sample size simulation for the primary outcome SF12 Total Score, a sample size of at least n = 50 per group is needed to achieve a power of 1−β = 0.87 in the case nparLD analysis for the comparison of the two interventions, mountain hiking and forest therapy. A larger sample size is required for analysis using ANOVA−at least n = 80 per group is required to achieve a power of 1−β = 0.87 (see 