Intervention | tDCS | Sham | Do not know | Total | James' blinding index | Bang's blinding index | 95% CI |
---|---|---|---|---|---|---|---|
Participant's guess, n (%) | |||||||
tDCS | 26 (32.1) | 3 (3.7) | 10 (12.3) | 39 (48.1) | 0.59 | 0.42, 0.76 | |
Sham | 18 (22.2) | 9 (11.1) | 15 (18.5) | 42 (51.9) | −0.21 | −0.41, −0.02 | |
Total | 44 (54.3) | 12 (14.8) | 25 (30.9) | 81 (100) | 0.57 | 0.49, 0.65 | |
Experimenter's guess, n (%) | |||||||
tDCS | 12 (15.4) | 0 (0) | 25 (32.1) | 37 (47.4) | 0.32 | 0.20, 0.45 | |
Sham | 2 (2.6) | 2 (2.6) | 37 (47.4) | 41 (52.6) | 0 | −0.08, 0.08 | |
Total | 14 (17.9) | 2 (2.6) | 62 (79.5) | 78 (100)a | 0.84 | 0.76, 0.91 |
↵aDue to missing data, three cases were omitted from calculations of the blinding indices.