Assessments matter in education. Testing is nothing new; tests have been around as long as school itself. However, over the last 15 years, state assessments have grown to be an increasingly central, and often controversial, part of schooling. As states raise their standards, it is more important than ever to ask: What is a high-quality assessment?…

The goal of the district assessment program of the Des Moines (Iowa) school district is to provide information which improves teaching and increases learning. Students participate in a number of assessment activities, including norm-referenced, standardized tests, college entrance examinations, Advanced Placement Tests, the district's…