Because of the importance of developing highly skilled urban school leaders, statewide assessments of 248 urban Texas public school administrators were analyzed to determine principal confidence levels in leadership skill domains identified by the National Policy Board of Educational Administration (NPBEA). Important findings indicate differences exist between urban principal skill sets in relation to campus student academic achievement as measured by state accountability ratings. Leadership skills of urban principals from schools with the state's highest student academic ratings differed from principals at lower rated urban schools. Three appendixes are included: (1) Principal Assessment of Student Success (PASS); (2) National Policy Board of Educational Administration (NPBEA): Knowledge and Skill Domains; and (3) Texas Education Agency: School Accountability Rating. (Contains 6 tables.)