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Table 3 Comparison of the mean aggression level before and after the intervention between the experiment and control groups

From: Anger management in substance abuse based on cognitive behavioral therapy: an interventional study

p-value

Control group

Experiment group

 

Standard deviation

Mean

Standard deviation

Mean

0.188

12

59.17

10.58

54.11

Before intervention

0.001

11

63.72

10.00

47.72

After intervention

0.013

0.015

P-value