Traditional research agrees that only effective school principals can fully influence student achievement, and school leaders are pivotal to the success of schools in America. Researchers have linked positive student outcomes to further illustrate the point, including student achievement, to high-quality school leadership. The purpose of this study is to assist state and district education leaders in Mississippi in having a more profound knowledge of which principal demographics and characteristics are more directly correlated with the improvement of accountability scores or student achievement. The results of the correlational and regression analysis to determine the relationship between principal variables and the number of points a school grew when comparing the 2017-2018 and 2018-2019 school year total accountability points earned. Limitations, implications, and recommendations for both school district leaders and future research are also discussed. [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://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]