Principals today face greater job complexities and more diverse challenges than ever before because of decreases in resources, funding, and district support, along with increases in accountability expectations, student diversity, and unfunded federal and state mandates. Principals today are tasked with myriad responsibilities ranging from facilities management and fiscal and legal concerns to instructional leadership and stakeholder relationships. The purpose of this study is to examine the role of formal, structured leadership coaching and engage in further inquiry to determine the effect of leadership coaching on principal efficacy in a complex and challenging educational environment. This convergent parallel mixed-method research approach is meant to determine if elementary principals' participation in formal leadership coaching programs increases their level of efficacy, as well as how different districts structure and implement these programs for the benefit of their administrators. [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.]