For eighth-graders eligible for free or reduced-price school lunch through the National School Lunch Program, as well as for students not eligible, science scores were higher in 2011 than in 2009 at all five selected percentiles.
Read specific descriptions of what eighth-graders should know and be able to do at the Basic, Proficient, and Advanced science achievement levels.
Read more information on how to interpret NAEP science results, including how each student group is defined.