The students who have the most difficulty reaching accountability standards in Wake County Public Schools are those with more than one of the following characteristics: recipients of free or reduced-price lunch, students with disabilities, and/or students with limited English proficiency. The Evaluation and Research Department identified elementary and middle schools that differed in their effectiveness in promoting achievement growth for these students. Quantitative and qualitative analyses suggest differences in both attitudes and practices. The more effective schools had higher expectations for these students, and greater confidence in their ability to meet students' needs. Evidence suggested more effective administrative leadership/support, training, and utilization of resources. Higher-growth middle schools utilized assessments to inform instruction more frequently, and higher-growth elementary schools had more structured collaboration around student needs. Further research is planned. The following are appended: (1) Literature Review for Each Group of Interest; (2) Highlights from Longview School; and (3) Interview and Survey Instruments.