Method: This semi-experimental study was of pretest-posttest design with nonequivalent group. The research population consisted of mothers of children with special needs in Roodsar city of Iran in 2017. Using convenience sampling, 30 students were selected and randomly assigned to the experimental and control groups (15 students per group). Prior to the training, both groups completed the psychological well-being scale (Reef, 1989), and hardiness questionnaire (Kobasa, 1986). The experimental group underwent ten 90-minute sessions of positive psychotherapy, while the control group received no intervention. Analysis of covariance (ANCOVA) was used to analyze the data.
Results: Data analysis by ANCOVA showed that the experimental group scored significantly higher than the control group in psychological well-being and hardiness (P < 0.05).
Conclusion: Based on the results of the present study, positive psychotherapy can increase the mental health indices and life quality of mothers of children with special needs through developing positive thoughts and schemes.