1) Educational testing in the US serves several purposes, including measuring student achievement and progress, assessing the effectiveness of educational programs, and ensuring accountability in public education.
2) High-stakes standardized tests have become a major focus in US schools, driven by policies like No Child Left Behind, and have impacted curriculum by increasing the emphasis on tested subjects like math and reading.
3) Schools use formative and summative testing - formative tests guide instruction while summative tests are used to assign grades and make judgments about student learning and progress.