Power Analysis
We conducted an a priori power analysis using G*Power 3 (Faul et
al., 2007) to determine adequate sample size. At α = .05 and 80% power,
a total sample size of 42 would be needed to detect a medium effect
(f = 0.25) for the between-groups comparisons of ERN,
ETCO2, SCL, HRV, and HR.