Methods: This survey was an experimental study in which positive and negative symptoms of patients with
schizophrenia were assessed with a scale for the assessment of positive and negative symptoms (SANS, SAPS,
respectively). The study was conducted in Sina Hospital, Shahrekord, Iran. The samples consisted of patients
with schizophrenia who were divided randomly into intervention and usual treatment groups (30 patients
in each group). The occupational therapy was performed in the intervention group for 18 h/week for
6 months. SANS and SAPS were assessed at the beginning and after 6 months of treatment.