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NAEP Weighting Procedures → 2003 Weighting Procedures and Variance Estimation → Computation of Base Weights → School Base Weights for New Schools

NAEP Technical DocumentationSchool Base Weights for New Schools

The school base weight for a new school is equal to the inverse of its overall probability of selection, which is the product of two components:

• the probability of selection of the school's district into the new-school district sample; and
   
• the probability of selection of the school into the new-school sample.

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