A dimensional investigation of error-related negativity (ERN) and self-reported psychiatric symptoms.

Power estimation An appropriate sample size was determined based on a previous study that reported an association of OCI-R scores and enhanced ERN amplitude that approached significance ( r = 0.32, p = 0.06) ( Gründler et al., 2009 ), an effect size suggesting that N = 155 participants were required to achieve 90% power at 0.005 significance. 2.2.

also in 8,237 other papers