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. 2013 Oct 12;14:331. doi: 10.1186/1745-6215-14-331

Figure 2.

Figure 2

Power analysis: power was determined by simulation. Lower and upper lines define exactly the 95% CI for power, calculated based on the binomial distribution. N is the total sample size. The analysis was performed at a 0.05 significance level considering 2 × 2 factorial analysis of variance (ANOVA) (tDCS plus CIMT and sham tDCS plus CIMT from pretest to post-test). Power has been estimated here for an interaction term (A *C).