%0 Journal Article %A Mohammadyaari, E. %A Hosseyniyaan, Ph.D., S. %T A Meta-Analysis of the Effectiveness of Solution-Based Group Counseling in Iranian Schools over the Past Decade %J Quarterly Journal Of Education %V 34 %N 4 %U http://qjoe.ir/article-1-1380-en.html %R %D 2019 %K meta-analysis, solution-based group counseling, students, %X During the past decade many researchers have studied the effectiveness of solution-based group counseling in improving characteristics such as self-efficacy, social adaptation, and academic motivation among school age children. Many of these studies have reported significant improvements, yet the exact impact is not known. To estimate this impact, a set of 24 studies meeting the methodological requirements of this study and conducted in high schools from 2007-2017 was selected to be meta-analyzed. The results of this analysis show that the impact is high (0.8) as the treated groups show an improvement of %47. Furthermore, the effect size on solving personal, inter-personal, and academic problems was estimated to be 0.23, 0.57, and 1.57 respectively corresponding to 16.7, 36.6, and 57.5% improvement. It is, therefore, suggested that this approach be utilized more extensively across schools. %> http://qjoe.ir/article-1-1380-en.pdf %P 65-80 %& 65 %! %9 Research %L A-10-107-148 %+ %G eng %@ 1017-4133 %[ 2019