PENGARUH KERJASAMA TIM, KOMUNIKASI INTERPERSONAL DAN KOMPETENSI TERHADAP KINERJA DOSEN DI UNIVERSITAS LA TANSA MASHIROReniAprianiauthorHigher education institutions have a crucial role in the socioeconomic development of the nation through the creation of quality Human Resources (HR). In this context, the performance of lecturers as human capital is the primary determinant of the academic organization's success. Preliminary observations at La Tansa Mashiro University indicate that lecturer performance is not yet optimal, as suggested by issues in teamwork, interpersonal communication, and the level of competency. Previous studies have widely examined the partial effect of these three variables on performance, but there remains a research gap. Not many studies have specifically explored the role of competency as a mediating variable in the relationship between teamwork and interpersonal communication and lecturer performance, especially in the context of higher education. This research aims to fill that gap and provide data-driven practical solutions to comprehensively enhance lecturers' academic performance. The main objective of this study is to deeply analyze the structural model connecting these variables. Specifically, this research seeks to test several hypotheses: first, to analyze the direct effect of teamwork on lecturer performance; second, to analyze the direct effect of interpersonal communication on lecturer performance, and third, to analyze the direct effect of lecturer competency on lecturer performance. Furthermore, another important objective is to test the indirect effect of teamwork on lecturer performance through lecturer competency, as well as the indirect effect of interpersonal communication on lecturer performance through lecturer competency. A quantitative approach using a survey method was employed in this study. The study population comprised all 121 permanent lecturers at La Tansa Mashiro University. The research sample was determined using the Slovin formula with a 5% error rate, yielding a sample size of 93 lecturers. The sampling technique applied was simple random sampling to ensure fair representation of the population. Data were collected through a questionnaire instrument using a 1-5 Likert scale, the validity and reliability of which have been tested. For data analysis, the Structural Equation Modeling (SEM) method based on Partial Least Squares (PLS) was utilized with the aid of the SmartPLS 4 software, which is effective for testing the structural model (inner model) and the direct and indirect effects among variables. The results of the SEM analysis demonstrate significant findings. Teamwork (β=0.186; t=2.203; p=0.014) and interpersonal communication (β=0.105; t=1.741; p=0.041) both have a positive and significant direct effect on lecturer performance. Moreover, lecturer competency exhibits a much stronger and more significant direct effect on performance (β=0.719; t=7.201; p=0.000).In addition, it is proven that teamwork (β=0.444; t=5.796; p=0.000) and interpersonal communication (β=0.264; t=3.903; p=0.000) also have a positive and significant indirect effect on performance through lecturer competency. The R2 value for performance is 0.850 (strong category) and the R 2 for competence is 0.648 (moderate category), indicating that the proposed model has excellent predictive power. Based on the analysis results, several main conclusions can be drawn. First, overall, teamwork, interpersonal communication, and lecturer competency make a significant and positive contribution to improving lecturer performance at La Tansa Mashiro University. Second, the crucial finding indicates that lecturer competency acts as a significant partial mediator. This suggests that improvements in teamwork and interpersonal communication not only have a direct effect on performance but also contribute through the mechanism of enhancing lecturer competency first. Third, among the three independent variables examined, lecturer competence has the largest direct effect on performance, confirming its role as the dominant factor. Theoretically, this finding enriches the body of knowledge in Education Management, particularly in formulating a model for enhancing lecturer performance by positioning competence as a key mediator. Practically, the research results provide a clear roadmap for the leadership of La Tansa Mashiro University and similar higher education institutions. Policy recommendations that can be implemented include: designing interventions to build a culture of collaboration and solid teamwork; conducting regular training on interpersonal communication skills and conflict management; and making sustainable competence development programs (training, further study, certification) an core strategy for performance improvement. The implementation of a performance appraisal and reward system that aligns with teamwork, communication, and competence development should also be considered. It is hoped that these recommendations will increase the productivity and quality of the tridharma perguruan tinggi (the three pillars of higher education: teaching, research, and community service), which will ultimately have a positive impact on the quality of graduates and the university's contribution to community development.L Education (General)2026UNIVERSITAS SULTAN AGENG TIRTAYASA;DOKTOR PENDIDIKANThesis