The treatment effect at the two months post-treatment did not reach statistical significance regardless of order: for participants who received tDCS first ( b = 3.0; 95% CI: −2.04 to 8.04; P = 0.24) or for participants who received sham first ( b = 2.3; 95% CI: −2.61 to 7.17; P = 0.36).
1
0.2400
0.2400