This study was conducted to analyze the effects of Gestalt psychotherapy. Based on the previous studies
on Gestalt psychotherapy, we examined the effect sizes among the variables(psychological reinforcement,
psychological suppression, social emotional variables). The results showed that the effect size of the
psychological reinforcement group was 0.524, the effect size of the psychological suppression group was
-0.605, and the effect size of the social and emotional group was 0.460. Also, meta-analysis of the
relationship between the continuous year variable and the effect size of the variables related to Gestalt
psychotherapy showed a statistically significant at the 95% confidence interval with a slope estimate of
0.035. These results show that the closer the year 2015 is, the higher the effectiveness of Gestalt psychotherapy. Based on the results of this study, we could present the direction of subsequent research
related to Gestalt psychotherapy by efficiently guiding the effect of Gestalt psychotherapy, and will provide
the necessary basic data in the field of Gestalt psychotherapy.