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All Journal Indo-MathEdu Intellectuals Journal
Gulo, Mei Novita Sarwidar
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Mathematics

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Efektivitas Konseling Gestalt untuk Mengurangi Konsep Diri Negatif Siswa Gulo, Mei Novita Sarwidar; Lase, Justin Foera-era; Damanik, Hosianna Rodearni; Lase, Famahato
Indo-MathEdu Intellectuals Journal Vol. 7 No. 2 (2026): Indo-MathEdu Intellectuals Journal (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v7i2.5166

Abstract

This study aimed to examine the effectiveness of Gestalt counseling in reducing negative self-concept among eighth-grade students at SMP Negeri 5 Mandrehe, characterized by feelings of being disliked, irritability, low learning motivation, and poor social adjustment. A quantitative approach was employed using a pre-experimental one-group pretest–posttest design involving 17 students selected through cluster random sampling. Data were collected using a Likert-scale questionnaire that met validity and reliability criteria (Cronbach’s Alpha for the independent variable = 0.917 and dependent variable = 0.896). Data analysis was conducted using a paired sample t-test and N-Gain analysis. The findings revealed a statistically significant difference between pretest and posttest scores (Sig. 0.000 < 0.05; t = 16.577), with a mean N-Gain score of 0.83 (83.30%), categorized as effective. These results indicate that Gestalt counseling is empirically effective in reducing students’ negative self-concept and may serve as a humanistic-based intervention model within school guidance and counseling services.
Co-Authors Damanik, Hosianna Rodearni Lase, Famahato Lase, Justin Foera-era