The purpose of this study was to determine whether or not a district-led, grow-your-own leadership seminar had a significant impact on the dispositions of its members compared to staff members who did not participate in the program. The participants involved (N = 20) included a naturally formed group of certified staff members (n = 10) who attended and completed a nine-month, district-led, grow-your-own leadership seminar and a demographically-matched, randomly selected group of certified staff members (n = 10) who did not attend or complete the leadership seminar. The dependent variable used in this study was the Administrator Disposition Index (ADI), a 36-item, five-point Likert survey aligned with the Interstate School Leaders Licensure Consortium (ISLLC) Standards. The survey consists of a 17-item student-centered subscale and a 19-item community-centered subscale. The findings of this study indicate that the implementation of a district-led leadership program had a statistically significant impact on the ADI community subscale and the ADI composite score of those who participated in the leadership seminar. The findings also indicate that the leadership program did not have a statistically significant impact on the ADI student subscale for those who participated in the seminar. Overall, the study suggests that a district-led leadership program may promote the development of dispositions necessary to be a successful administrator. A discussion of the findings, implications for policy and practice, as well as recommendations for further study are included. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]