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NAEP Weighting Procedures → Weighting Procedures and Variance Estimation for the 2004 Assessment → Computation of Replicate Weights for the 2004 Assessment → Computing Student-Level Replicate Base Weights for the 2004 Assessment

NAEP Technical DocumentationComputation of Student-Level Replicate Base Weights for the 2004 Assessment

For the 2004 assessment, the calculation of the student-level replicate base weights for student k from school s in jurisdiction j for each of the 62 replicates, STU_BWT_jsk (r), r = 1, ..., 62, were calculated as follows: 

where

• SCH_BWT_jsk(r) is the replicate school base weight,

• SCHSESWT_js is the school-level session assignment weight used in the full-sample weight,

• WINSCHWT_js is the within-school student sampling weight used in the full-sample weight,

• STUSESWT_jsk is the student-level session assignment weight used in the full-sample weight,

• SUBJFAC_j is the subject factor used in the full-sample weight,

• SUBADJ_js is the substitute adjustment factor used in the full-sample weight, and

• YRRND_AF_js is the year-round adjustment factor used in the full-sample weight.

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