TSD2222 is part of the Statewide Assessment Coordination (SSAC) program. It provides direction and coordination for state-level assessments and longitudinal systems data in Arizona. The purpose of TSD2222 is to ensure accurate, reliable, and valid assessment of student learning and performance and to ensure alignment between assessment activities and the implementation of education standards. TSD2222 ensures high quality assessment data, research studies, and evaluation activities to improve Arizona's educational system.