Currently, there are both internally and externally increasing pressure on Jordanian schools to enact reform. School leadership has always been viewed as critical to the success of the school reform and can exhibit tremendous influence. More specifically, the empirical literature on leadership has shown that transformational leadership is positively associated with principals’ effectiveness in implementing reform agenda. Kouzes and Posner's Transformational Leadership Model provides school principals in Jordan with practical guidance on how to lead, as well as, practical suggestions on how to act during reform agenda. Therefore, the purpose of this study is to examine the degree to which Kouzes and Posner's Transformational Leadership Model is being practiced by Jordanian school principals. This research paper is quantitative in nature and will be conducted using a survey design. Means, standard deviations, t-test, and one-way analysis of variance (ANOVA) will be utilized in this study.