NAEP Technical DocumentationStudent Sample Selection for the 2013 Private School National Assessment

The target student sample size within sampled schools varied by grade. For fourth grade, the target was 64 students; and for eighth grade, the target was 65 students. However, schools with 72 or fewer students automatically had all students sampled. In addition, at grade 4 only, a school that had more than 72 students but fewer than 90 students could choose to have all students sampled. For schools sampled for the twelfth grade the target was 60 students. However, schools with 66 or fewer students had all students sampled.

There was only one spiral type for each grade. The percentage of booklets by subject within the spiral for each grade is given below.

The process of student list submission, sampling students from year-round schools, sampling new enrollees, and determining student eligibility and exclusion status was the same as for the state NAEP student sample.

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