This study was conducted to examine the role of job satisfaction in mediating the influence of work-life balance on teacher performance at A-accredited State High School in Bandar Lampung City. The research uses a quantitative approach with a causal design. Data was obtained through the distribution of questionnaires to 190 teachers from 11 State High Schools who were selected by purposive sampling technique, then the collected data was analyzed by applying the PLS-SEM method through bootstrapping using SmartPLS 4 and SPSS. The findings of the study revealed that teachers' performance is positively and significantly influenced by work-life balance, both through direct channels and through the role of mediation of job satisfaction. This confirms the importance of workload management, the provision of work support, and the creation of a supportive work environment as a continuous effort to improve teacher satisfaction and performance.
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