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The target student sample size within the sampled schools for the twelfth-grade public sample was 60 students. However, schools with 66 or fewer students automatically had all students sampled.
There was only one spiral type for the twelfth-grade public school sample. In the spiral, 51.5 percent of the booklets were reading and 48.5 percent were mathematics.
The process of list submission, sampling students from year-round schools, sampling new enrollees, and determining student eligibility and exclusion status was the same as the process used for the NAEP state student sample.