Only two states scored below Arizona on a 2009 national science assessment given to a sample of students, according to results released Tuesday.
Arizona’s average scale score (138) on The National Assessment of Educational Progress bested only California (136) and Mississippi (133). The national average was 149.
The test was given to fourth, eighth and 12th graders, though the state score does not include 12th graders’ results because that sample was too small.
The assessment measures students’ knowledge of three broad content areas: physical science, life science and Earth and space sciences.