Testing Results

The Stanford Achievement Test is a standardized, nationally administered test of academic performance that assesses student learning in the following subject areas: Reading, Spelling, Language, Mathematics, Science, and Social Studies. For more than 80 years, the Stanford series of achievement tests (currently SAT 10; i.e., the tenth series edition) has been used by public and private schools across the country.


Like most standardized tests, the Stanford is a norm-referenced test.  Norm-referenced tests compare individual student and school results with the results from other students and groups in a nationwide sample.  Test results are presented in various formats, with the Percentile Rank being the most common and understandable.  A Percentile Rank (PR) score does not indicate the percentage of test items that a student answered correctly.  Rather, it shows how the student performed in comparison to students of the same age/grade level who took the test at the same time of year.  NPR stands for National Percentile Rank, indicating that the comparison group is students from across the country.  PR scores range from a low of 1 to a high of 99, with 50 denoting average performance.  For example, an individual NPR score of 65 (sometimes expressed as “scoring at the 65th percentile”) means that the student performed as well or better than 65 percent of the students his/her age, nationwide, taking the test.


After each testing period, the testing service (Pearson Assessments) provides schools not only with individual scores, but also group scores on a school basis.  The chart below reflects the collective performance of our students, by grade level, on the overall battery of tests.  These results show, statistically speaking, that our students (as a group) consistently outperform other school groups in their corresponding grade levels.  For example, a National Percentile Rank (NPR) of 96 for a given class indicates that our students in that class, as a group, scored as well as or better than 96% of school groups nationwide who took the test.


These results are not something we produce—the tests are administered in accordance with strict guidelines, and student answer sheets are sent to the testing service for scoring.  The results, both for individual students and for our classes collectively, are provided to us by Pearson Assessments.


The superior achievement of our students, as demonstrated in the results below, reflects the diligent efforts of our young people and the commitment of their parents, and also validates the quality of education provided by our faculty.