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NAEP Sample Design → Sample Design for the 2000 Assessment → State Assessment Sample Design in 2000 → School Sample Selection for the 2000 State Assessment → District Size and School Size for the 2000 State Assessment

NAEP Technical DocumentationDistrict Size and School Size for the 2000 State Assessment

District size and school size are two stratification variables used in the systematic sorting of the state NAEP school sampling frame. The classification of schools by district size and school size occurs before school sample selection. Both district size and school size have two possible values: "small" and "large."

Small school districts contain less than 20 percent of the jurisdiction's student population, while large school districts contain 20 percent or more of the jurisdiction's student population.

The small school size class represents all schools with an estimated grade enrollment of less than 25 students, while the large school size class represents all schools with an estimated grade enrollment of 25 students or more.

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