What key feature does the No Child Left Behind Act of 2001 promote for students?

The No Child Left Behind Act of 2001 emphasizes uniform access to state testing as a fundamental aspect of its framework. The Act was designed to ensure that all students, regardless of background or circumstances, have access to certain educational standards, which include standardized testing across states. This uniformity in testing allows for a consistent measure of student achievement and progress, facilitating comparisons across different demographics and regions. By focusing on accountability through these standardized assessments, the Act aims to provide a clearer picture of students' academic performance and ensure that education standards meet specific benchmarks, thus working towards closing achievement gaps among various student groups. This feature is critical for promoting educational equity and ensuring that no group of students is overlooked in the educational system.