This document discusses the history and impact of high-stakes standardized testing in the United States. It traces the rise of standardized testing from the 1980s onward, as testing became a central part of education reform under presidents Reagan, Bush, and Clinton. The No Child Left Behind Act of 2001 made testing even more consequential, tying test scores to consequences for students, teachers, and schools. The document notes concerns that testing has narrowed curriculum, reduced time for subjects like social studies, and pushed teachers to focus on test preparation over meaningful learning. Overall impacts and the appropriate role of standardized testing in education remain debated issues.