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NAEP Sample Design → Sample Design for the 2000 Assessment → State Assessment Sample Design in 2000 → Stratification of Schools in the Sampling Frame for the 2000 State Assessment → Achievement Data for the 2000 State Assessment → Usable Achievement Data for the 2000 State Assessment

NAEP Technical DocumentationUsable Achievement Data for the 2000 State Assessment

			Implicit Stratification Variables for Jurisdictions

Usable school achievement measures met the following criteria:

• An achievement measure reflected the assessment's targeted grades and subjects.

• An achievement measure came from the most recent educational assessments.

• An achievement measure appeared for at least 70 percent of schools within the jurisdiction and grade.

• An achievement measure adequately differentiated schools (e.g., district-level measures or pass/fail indicators tended not to make effective sort variables).

For the 2000 state assessment, usable achievement data included average school test scores for fourth- and eighth-grade mathematics and science. Third or fifth grade mathematics and science data could substitute for fourth grade data, while seventh grade mathematics and science data could substitute for eighth grade data. Achievement data came from the 1996, 1997, or 1998 educational assessments.

Thirty-eight participating jurisdictions in the 2000 state NAEP assessment submitted school achievement results. Of these 38 jurisdictions:

• 30 jurisdictions used school achievement results for stratification for at least one grade,

• 29 jurisdictions used school achievement results for stratification of their fourth-grade schools, and

• 28 jurisdictions used school achievement results for stratification of their eighth-grade schools.

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