Meta-analysis and comparison of the effectiveness Dialectical Behavior therapy and Schema therapy on the components of marital quality of couples

In recent years in Iran, several studies have examined the effectiveness of Dialectical Behavior therapy and Schema therapy  in the field of conflict resolving  and enriching the couple's .relationship.The purpose of this study is to integrate the results of previous research and compare the effectiveness of these interventions on marital quality components.

For this purpose, meta-analysis was used as a statistical technique to determine, collect, combine and summarize research findings related to the effectiveness of Dialectical Behavior therapy and Schema therapy on the components of marital quality of couples.The statistical population of the study includes researches conducted in Iran in the field of mentioned psychotherapies . The statistical sample includes research conducted in this field inside Iran. For this purpose, 19 studies were selected.After reviewing 17 researches that were methodologically acceptable, they were analyzed.The research tool was a meta-analysis checklist and CMA software was used to analyze the data.

The results showed the magnitude of the combined effect of the treatments(P <0.01) was equal to r = 0.629, which is equivalent to zr = 0.739 and g = 1.557, and according to Cohen's interpretation table means the size of the effect is large or high. Also, the results did not show a significant difference between the effect size of Dialectical Behavior therapy and Schema therapy.                                                                   

Based on the results of this meta-analysis, dialectical behavior therapy and schema therapy are effective in improving the marital quality components of couples.