سبک رهبری و تعالی سازمان‌های چند وظیفه‌ای (مورد مطالعه: حوزه پژوهشی دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید بهشتی)

Abstract Background: Transcendental leadership is a success secret of organizations in performance of the assigned tasks. What leadership style is dominant in multitasking organizations and what leadership style is ideal for increase level of excellence and how and to what extent the mentioned organizations transcend have been less studied. This research was conducted in 2012-2013 considering information gap in research area of Shahid Beheshti University of Medical Sciences. Materials and Methods: The research has been conducted in descriptive method. To study leadership styles, Multi-factor Leadership Questionnaire (MLQ) has been used and to study organizational excellence, EFQM Excellence Model was used. These two questionnaires have been studied on 441 members of faculty board, personnel and students in 21 centers, which provide research services of Shahid Beheshti University of Medical Sciences, which had been selected with cluster random sampling..In this research, mean ranks of 0 to 4 were determined for determining three styles of transformational leadership, transactional and laissez-faire leadership styles and organizational excellence among the studied people based on the maximum 1000 scores (EfQm, version 2010) and correlation between these two factors was specified, analyzed and reported with multiple regression analysis. Results: The most prevalent leadership style in this study was transactional leadership style with rank 3.22 and transformational leadership style with rank 3.16 and finally laissez-faire leadership style with rank 2.95. In other words, profile of dominant leadership style in research area of university is transactional leadership style while this style alone doesn’t play role in organizational excellence of research area (P=0.49 and beta=0.04). On the contrary, transformational leadership style has had absolute effect on excellence (P<0.01 and beta=%37). Mean rank of excellence in the university is 496 and the best rank belongs to Masih Daneshvary Centre and Tuberculosis and Pulmonary Diseases Research Center (605) and the least rank relates to Faculty of Rehabilitation with rank of 395. It is necessary to note that Masih Daneshvary Centre and Tuberculosis and Pulmonary Diseases Research Center have had the highest score together in transformational and transactional leadership style. Conclusion: It seems that: first, excellence in university should be seriously considered and considering that heart research area is motor of scientific development in universities and it should be increasingly considered. Second, although dominant leadership style in university is transactional, it has no acceptable correlation with excellence and it is recommended to study causes and necessary actions for solving the mentioned problem and use transformational leadership style. Keywords: Leadership style, Multitasking organizations, Excellence.