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NAEP 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 → School Nonresponse Adjustment Factor Calculation for the 2005 Assessment

NAEP Technical DocumentationSchool Nonresponse Adjustment Factor Calculation for the 2005 Assessment

In each final school nonresponse adjustment cell c, the school nonresponse adjustment factor   SCH_NRAF_js(c) for each school s in jurisdiction j was computed as follows:

where

• S_j(c) is the set of all eligible sampled schools (cooperating original and substitute schools, and refusing original schools with noncooperating or no assigned substitute) in cell c in jurisdiction j,

• R_j(c) is the set of all cooperating schools within S_j(c),

• SCH_BWT_js is the school base weight for school s in jurisdiction j,

• SCH_TRIM_js is the school-level weight trimming factor for school s in jurisdiction j,

• SCHSESWT_js is the school-level session assignment weight for school s in jurisdiction j, and

•  X_js is the estimated grade enrollment corresponding to the original sampled school in jurisdiction j.

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