No Child Left Behind Subgroups
Under the No Child Left Behind Act, districts and schools must break down test scores by subgroups to determine whether all students are making adequate yearly progress.
Subgroup categories: u Students from major racial and ethnic groups, typically, African-American, Hispanic, white non-Hispanic, American Indian/Native Alaskan, and Asian/Pacific Islander u Economically disadvantaged students u Students with disabilities u Students with limited English proficiency
Districts and schools may choose not to count subgroups that are so small they are statistically unreliable for accountability purposes. Those numbers, known as an N-size, differ by state, based on approval by the U.S. Department of Education, and range from 5 to 75.