The purpose of this study was to evaluate the anger control program in
reducing anger expression in patients with schizophrenia. The study had an
interrupted time series with nonequivalent comparison group design. Data
were collected before the intervention, at the end of the 5th and 10th group
sessions, and 2 weeks after the 10th (or last) session. A total of 78
patients were assigned to experimental (the anger control program) or
comparison groups. The Generalized Estimating Equation (GEE) was used
to analyze the longitudinal data. The program was found to reduce anger
expression in patients with schizophrenia effectively and to increase their
anger control ability.
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