Randomisation method and allocation concealment
anger
RECURRENCE
This study was a single-blind study; the hospital’s clinical pathologists and doctors in contact with the patients were blinded, while the clinical art therapists conducting the study were not blinded. Participants were randomly assigned to groups using a computerized random number table by university volunteers who did not participate in the study intervention. The research description and informed consent form explained that the probability of being assigned to each group is 50:50. The assignment order was hidden in sequentially numbered, opaque, sealed, and stapled envelopes that did not transmit intense light in which participants were enrolled. Participants’ names and dates of birth were recorded on the envelopes to prevent the dispensing order from being reversed. Results were available after enrolled participants had completed all baseline assessments and before assigning interventions. Both groups received the same hospital-provided addiction treatment (AUD education, cognitive behavioral therapy, anger control training, recurrence prevention training, high-risk situation management program, etc.) (Figs 