Table 3 One-sample T-tests for capacity changes relative to sham against zero

From: TDCS over PPC or DLPFC does not improve visual working memory capacity

Stimulation

Set size

Statistical value

P value

Effect size

BF

Error (%)

PPC

2

476.00a

0.874

0.17

1/5.65b

<0.01

4

−0.11

0.546

−0.02

1/2.65b

<0.01

6

−1.35

0.909

−0.20

1/20.20b

<0.01

DLPFC

2

488.00a

0.424

0.12

1/2.13c

0.01

4

−0.82

0.419

−0.12

1/2.95c

0.01

6

0.03

0.976

<0.01

1/3.92c

0.01

  1. df = 47. Bonferroni-corrected threshold of 0.0083.
  2. PPC right posterior parietal cortex, DLPFC left dorsolateral prefrontal cortex.
  3. aNon-Parametric one-sample Wilcoxon signed rank test.
  4. b\({{{\rm{BF}}}}_{10}^{+0}\): in favor of the alternative hypothesis that capacity changes relative to sham are greater than zero, against the null effect that capacity changes equal to zero.
  5. cBF10: in favor of the alternative hypothesis that capacity changes relative to sham not equal to zero, against the null effect that capacity changes equal to zero.
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