International Journal of Advances in Scientific Research and Engineering (ijasre) E-ISSN : 2454-8006 DOI: 10.31695/IJASRE.2022.8.12.5 Volume 8, Issue 12 December - 2022 www.ijasre.net Page 31 Study of Transformational Leadership based on Spiritual Intelligence: A Case Study of Teamwork performance in Indonesia Susilo Adi 1 , Anwar Sanusi 2 , and Maxion Suntaky 3 1 Doctoral Student of Postgraduate Program 2,3 Lecturer of Postgraduate Program of University of Merdeka Malang, Indonesia _______________________________________________________________________________________ ABSTRACT Building a conceptual model of Transformational Leadership based on spiritual Intelligence to fill the gap between authentic leadership and team performance. Statistical testing in this study uses four variables, namely: authentic leadership, Transformational Leadership based on spiritual Intelligence, Perceived Organizational Support and Teamwork performance. The conceptual model was developed and tested empirically through a survey action. 110 respondents consisting of Heads of Service, heads of Fields, Heads of Service Branches, Heads of Sections, Heads of Subdivisions for developing the performance of educational institutions in Central Java, Indonesia. This research adopts Transformational Leadership theory and spiritual intelligence theory, to mediate authentic leadership with team work performance. Furthermore, by using the Sobel test, Transformational Leadership based on spiritual Intelligence is able to become an authentic leadership mediator with team work performance and is very relevant in becoming a key factor in increasing team work performance. Limitations of this study are, the first is that this study focuses on the role of the mediator and the management of organizational support for employees, without considering other variables. The second limitation how the concept of other mediation in increasing the dependent variable is. The perspective of the relationship between Transformational Leadership based on Spiritual Intelligence, Authentic Leadership and teamwork performance provides guidance on how public organizations such as the Education Office can form authentic leadership to encourage Transformational Leadership based on Spiritual Intelligence which will improve team performance. Keywords: Authentic Leadership, Perceived Organization Support, Teamwork performance, Transformational Leadership based on Spiritual Intelligence. ________________________________________________________________________________________________________ 1. BACKGROUND Modern organizations face complex developments about implications for the public, private and non-profit sectors worldwide [1], and public organizations must try to pay attention to many considerations related to ideas, demands, structures and cultural elements [2, 3] one of the reasons is, modern organizations must implement aspects in various modern public sectors in an increasingly fast space. The concept of an effective team in service is a group of people who have complementary skills and are committed to achieving common goals with a collective work process in which they are mutually responsible [4,5]. To realize this, leadership is needed who can influence subordinates who are referred to and contribute to the development of these competencies that are formed, and based on transparency, openness, and trust; guiding meaningful goals and focusing on follower development, this has the potential to increase [6, 7]. Authentic leadership is expected to be able to encourage superior human resources who can produce high levels of competition for companies such as intellectuality, creativity, and critical thinking, so that performance increases [8-10]. Other research results indicate that transactional leadership style has a significant positive effect on performance, while transformational leadership style has a positive but not significant effect on performance [11]. The self-regulatory behaviour inherent in authentic leadership processes serves to collectively shape team behaviour, which manifests in the process of team reflexivity, which, in turn, positively predicts team performance. However, team performance turns out to be at a higher premium in the organization under considerable pressure to carry out cost efficiency [12] but there are still some research gaps related to the non-optimal existence of various factors that try to improve teamwork performance. This study seeks to develop a new conceptual model for improving team performance, by adopting a new concept of Transformational Leadership based on spiritual Intelligence, as well as Perceived organization support [13] to improve performance. mediating Authentic Leadership [14] which is expected to improve teamwork performance.