Group

Times Compared

Test Statistics

Probability

Imipramine + neurofeedback

Before-after

Wilcoxon Signed Ranks Test = −2.70

0.007^**

Before-three months later

Wilcoxon Signed Ranks Test = −2.12

0.034^*

After-three months later

Wilcoxon Signed Ranks Test = −1.98

0.048^*

Comparing the three groups combined

Friedman Test = 11.81

0.003^**

Sham + imipramine

Before-after

Wilcoxon Signed Ranks Test = −2.82

0.005^**

Before-three months later

Wilcoxon Signed Ranks Test = −1.41

0.157

After-three months later

t-Test = −5.45

0.0001^**

Comparing the three groups combined

Friedman Test = 17.87

0.0001^**

Imipramine

Before-after

Wilcoxon Signed Ranks Test = −2.83

0.005^**

Before-three months later

Wilcoxon Signed Ranks Test = −2.53

0.012^*

After-three months later

Wilcoxon Signed Ranks Test = −1.83

0.068

Comparing the three groups combined

Friedman Test = 16.75

0.0001^**