But NCLB has exposed students to an unprecedented overflow of testing. In response to the accountability movement, schools have added new levels of testing that include benchmark, interim, and common assessments. Using data from these assessments, schools now make decisions about individual students, groups of students, instructional programs, resource allocation, and more. We're betting that the instructional hours sacrificed to testing will return dividends in the form of better instructional decisions and improved high-stakes test scores.