Table 3.
Power analysis for each NIBS protocol (POST-PRE) on cortical excitability vs. Sham.
| Mean change NIBS | Mean change sham | Mean difference (NIBS-Sham) | Pooled variance | Cohen's d | Total sample size | Group sample size | ||
|---|---|---|---|---|---|---|---|---|
| Anodal tDCS | Mean | 0.0800 | −0.4931 | 0.5731 | 0.3474 | 0.972 | 58 | 29 |
| SD | 0.4355 | 0.7108 | ||||||
| PAS25 | Mean | −0.2392 | −0.4931 | 0.2539 | 0.3195 | 0.449 | 260 | 130 |
| SD | 0.3659 | 0.7108 | ||||||
| iTBS | Mean | 0.1310 | −0.4931 | 0.6241 | 0.3489 | 1.057 | 50 | 25 |
| SD | 0.4389 | 0.7108 |
A priori power analysis, independent samples t-test, two-tailed, alpha = 0.05, power = 0.80, n = 7 per group.