This research employed a quantitative approach using a survey method. The study population consisted of 2,238 TPK members, while 340 respondents were selected as the research sample using the Slovin formula with proportionate stratified random sampling. Data were collected through questionnaires and analyzed using Structural Equation Modeling–Partial Least Squares (SEM-PLS) with SmartPLS 4 software. The findings indicate that competence, workload, and organizational support have no significant effect on the performance of TPK members. In contrast, competence and organizational support have a positive and significant effect on job satisfaction, whereas workload has no significant effect on job satisfaction. Furthermore, job satisfaction has a positive and significant effect on the performance of TPK members. The mediation analysis reveals that job satisfaction fully mediates the relationship between competence and performance as well as the relationship between organizational support and performance, while job satisfaction does not mediate the relationship between workload and performance. This study concludes that job satisfaction is an important mechanism that mediates the effects of competence and organizational support on the performance of Family Assistance Team (TPK) members. Therefore, efforts to improve the performance of TPK members should not only focus on enhancing competence and organizational support but also on increasing job satisfaction as a key factor in optimizing performance.
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