Katayoon kamkari - Department of Physical Education and Sport Sciences, Islamic Azad University, Central Tehran Branch, Tehran,Iran
Arezo malek saniee - Department of Physical Education and Sport Sciences, Islamic Azad University, Central Tehran Branch, Tehran,Iran
Abdolreza Amirtash - Faculty of Physical Education and Sport Sciences, Islamic Azad University, central Tehran Branch, Tehran, Iran

Background: Examining coaches’ behaviors and leadership styles and their effects on a team’s behaviors, motivation can help us to improve coach-athlete relationship and team performance. Thus, the present research was conducted to examine the relationship between transformational and transactional leadership styles of coaches and motive to achieve success, motive to avoid failure and power motive of football premier players in Iran.Materials and Methods: Leadership styles of coaches measured by The Leadership Profile questionnaire (TLP) and competition motivation f players measured by Sport Attitude Inventory (SAI). The statistical procedure also was based on descriptive and inferential basis and included multivariable regression.Results and Discussions: The findings indicated: Coaches with high score in transformational and transactional leadership styles had effectivenessleadership style and.actualizing profile -self Motive to achieve success of athletes was highest and power motive and motive to avoid failure of them were second and third level. There was significant and positive correlation between transformational leadership style of coaches and motive toachieve success and power motive of athletes. There was significant and negative correlation between transformational leadership style of coaches and motive to avoid failure of athletes.Conclusion: Transformational leadership characteristics and transformational behaviors of coaches had equal effect on increase of motive to achieve success of athletes. Transformational leadership characteristics of coaches had more effect on decrease of motiveto avoid failure of athletes than transformational leadership behaviors. Transformational leadership behaviors of coaches had more effect on increase of power motive thantransformational leadership characteristics. Transactional leadership styles of coaches didn’t have significant correlation with three scales of motives related competition.

Transformational leadership, Motive to achieve success, Power motive