Table 3 Sample descriptive data and baseline comparisons between groups.

From: Augmentation of working memory training by transcranial direct current stimulation (tDCS)

Measure

Sham

Congruent

Incongruent

ANOVA/χ2

p-value

Gender (female/male)

18/5

18/6

21/3

X2(2) = 1.27

0.529

Age

26.74 (7.00)

22.96 (2.03)

23.75 (4.67)

F(2,68) = 3.77

0.028

Education (in years)

18.12 (4.25)

16.08 (1.81)

16.33 (2.83)

F(2,68) = 2.98

0.058

MWT-B

103.52 (14.54)

101.33 (10.20)

99.79 (8.15)

F(2,68) = 0.65

0.524

EHI (laterality-quotient)

93.00 (13.85)

88.75 (13.85)

92.63 (12.86)

F(2,68) = 0.72

0.49

Training task (mean n)

2.70 (0.71)

2.69 (0.60)

2.56 (0.52)

F(2,68) = 0.40

0.674

Transfer task (d-prime)

2.18 (0.82

2.25 (0.95)

1.90 (0.78)

F(2,68) = 1.13

0.329

  1. Data are mean values with standard deviations in parentheses; EHI = Edinburgh Handedness Inventory; MWT-B = Multiple Choice Word Test-B.