Each NAEP assessment tests students on a variety of academic subjects. For the 2000 assessments, subject tests included mathematics, reading, and science.
Mathematics - grades 4, 8, and 12
Reading - grade 4 only
Science - grades 4, 8, and 12
Mathematics - grades 4 and 8
Science - grades 4 and 8
Sample designs for both assessments ensure that school and student samples for each subject represent their respective target populations.