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Table 2 Means, standard deviations and effect sizes (Cohen’s d) for symptoms of OCD, anxiety, and depression

From: Successfully treating 90 patients with obsessive compulsive disorder in eight days: the Bergen 4-day treatment

  M SD d
Y-BOCS
 Pre 26.16 3.37  
 Post 10.54 4.61 4.63
 3 months 10.68 6.31 4.59
GAD-7
 Pre 11.88 4.88  
 Post 8.80 4.49 0.63
PHQ-9
 Pre 11.75 5.36  
 Post 8.34 4.59 0.64
  1. Note: N = 90. d = (Mpre – Mpost)/SDpre