Özet:

The aim of this study is to examine the effect of solution-focused brief approach based on subjective well-being improvement program on adolescents' subjective well-being levels. The study group con-sisted of 36 adolescents with low subjective well-being pre-test scores. The research is a study based on true experimental design with pre-test which has experimental-control-placebo group, post-test and follow-up test measurements. In this study, Adolescent Subjective Well-Being Scale and Personal In-formation Form were used as data collection tools. Kruskal Wallis H Test for Independent Samples, Mann Whitney U Test for Independent Samples and Wilcoxon Signed Rank Test for Paired Samples were used to analyze data. According to obtained results, it was determined that there was a signifi-cant increase in subjective well-being post-test scores of adolescents in the experimental group compa-red to the pre-test scores, control and placebo groups. It was observed that the increase in the post-test scores of the adolescents in the experimental group was preserved in the follow-up measurements. In the control and placebo groups, no significant difference was found between the pre-test, post-test, and follow-up test scores.

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