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NAEP Assessment Weighting Procedures → Weighting Procedures for the 2005 Assessment → Computation of Full-Sample Weights for the 2005 Assessment → School and Student Nonresponse Adjustments for the 2005 Assessment → School Nonresponse Adjustment for the 2005 Assessment

NAEP Technical DocumentationSchool Nonresponse Adjustment for the 2005 Assessment

			Development of Initial School Nonresponse Cells Development of Final School Nonresponse Cells School Nonresponse Adjustment Factor Calculation

The school nonresponse adjustment procedure inflates the weights of cooperating schools to account for eligible noncooperating schools for which no substitute schools participated. The adjustments are computed within nonresponse cells and are based on the assumption that the cooperating and noncooperating schools within the same cell are more similar to one another than to schools from different cells. Exactly how nonresponse cells were defined varied by

• whether the samples were state-based or national;
• whether the schools were public or private schools;
• grade; and
• assessment type (operational or bridge).

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