A recently developed and state-validated model of school evaluation and program development is now being used in 174 Texas school districts. The Learner-Based Accountability System (LBAS) is a model for school evaluation and program development geared toward the improvement of school practices. The 11 components of the system incorporate the implementation, management, and utilization of curriculum and school evaluation data for practical classroom applications and policy-setting. Data captured from over 150,000 students have indicated that the focus provided through curriculum orchestration, evaluative feedback, and need-specific intervention favorably affected teachers' use of the curriculum and local district program planning. With the large number of schools already participating in the LBAS, an awareness of the project and its impact in the schools can add to the knowledge base for effective program planning and evaluation practices. The model has the potential to direct future lines of inquiry into school evaluation and program development by stimulating interest in the replication, embellishment, and/or refinement of such improvement-oriented systems. (Author/PN)