RT Journal Article A1 Ziyadi Ali Ikromi A1 Novi Hidayat A1 Rismawati Rismawati T1 The role of optimism in improving subjective well-being in Islamic Boarding School Students JF Priviet Social Sciences Journal YR 2025 VO 5 IS 5 SP 111-121 DO 10.55942/pssj.v5i5.516 AB Subjective well-being is a critical metric for assessing quality of life, particularly among students residing in Islamic boarding schools. It encompasses both life satisfaction and emotional experiences, serving as a vital indicator of positive mental health. This study aimed to examine the impact of optimism on students' subjective well-being. A quantitative research methodology was employed, involving 93 students aged 13 to 17 years from Islamic boarding schools. Data were collected using scales measuring optimism and subjective well-being. The analysis was conducted using simple linear regression, supplemented by assumption tests, including normality and linearity assessments. The results indicated a significant effect of optimism on subjective well-being, with a p-value of 0.000 (p < 0.01). These findings suggest that optimism exerts a highly significant influence on the subjective well-being of students in Islamic boarding schools. K1 islamic boarding school students, optimism, subjective well-being LK https://journal.privietlab.org/index.php/PSSJ/article/view/516 ER