NAEP Assessment Weighting Procedures → Weighting Procedures for the 2009 Assessment → Computation of Full-Sample Weights for the 2009 Assessment → School and Student Nonresponse Weight Adjustments for the 2009 Assessment → School Nonresponse Weight Adjustment for the 2009 Assessment

NAEP Technical DocumentationSchool Nonresponse Weight Adjustment for the 2009 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. School nonresponse adjustments were carried out separately by sample; that is, by

• grade (4, 8, 12);
• school type (public, private); and 
• assessment subject (reading, mathematics, science, science HOT, science ICT). 

 

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